When do you use a comma in a sentence? (1 point)

Responses

to mark the end of a sentence
to mark the end of a sentence

to indicate an abrupt break in thought or structure
to indicate an abrupt break in thought or structure

to denote an omission
to denote an omission

to show a pause in a sentence or separate items in a list

to show a pause in a sentence or separate items in a list

to indicate an abrupt shift in idea

Which sentence is punctuated correctly? (1 point)

Responses

I added bread, milk, and sugar to the list of ingredients needed to make the recipe.
I added bread, milk, and sugar to the list of ingredients needed to make the recipe.

Because, we live at a high elevation, sometimes we have to adjust the cooking time for recipes.
Because, we live at a high elevation, sometimes we have to adjust the cooking time for recipes.

Before you leave for the store . . .check to make sure your grocery list is complete.
Before you leave for the store . . .check to make sure your grocery list is complete.

Baking bread is one of my favorite things to do—on a weekend afternoon.

Which sentence is punctuated correctly?(1 point)

Responses

Which bus do we take to get to the pool . . .
Which bus do we take to get to the pool . . .

The swim meet starts in an hour—we need to hurry!
The swim meet starts in an hour—we need to hurry!

My swim meet was canceled because of rain. . . but it will be rescheduled.
My swim meet was canceled because of rain. . . but it will be rescheduled.

I have snacks, a bottle of water—and a towel in my bag.

When should a writer use a dash?(1 point)

Responses

to separate clauses in a compound sentence
to separate clauses in a compound sentence

to indicate an abrupt shift in idea
to indicate an abrupt shift in idea

to separate items in a list
to separate items in a list

to set off an introductory word or phrase

What is 5.5×104 multiplied by 2.2×10−8 ? Write the answer in scientific notation.(1 point)

Responses

1.21×10−4
1.21 times 10 superscript negative 4 baseline

1.21×10−3
1.21 times 10 negative cubed

1.21×10−5
1.21 times 10 superscript negative 5 baseline

12.1×10−4

1.21×10−4

When multiplying two numbers in scientific notation, what operations do you use on the coefficients and the exponents of the powers of 10?(1 point)

Responses

Multiply the coefficients and add the exponents of the powers of 10.
Multiply the coefficients and add the exponents of the powers of 10.

Add the coefficients and add the exponents of the powers of 10.
Add the coefficients and add the exponents of the powers of 10.

Multiply the coefficients and multiply the exponents of the powers of 10.
Multiply the coefficients and multiply the exponents of the powers of 10.

Add the coefficients and multiply the exponents of the powers of 10.

Multiply the coefficients and add the exponents of the powers of 10.

Baking bread is one of my favorite things to do—on a weekend afternoon.