the sum of 7 and three a number b is at least 12 ?

Keila -- it doesn't help to change names.

You try this one.

sorry Ms.Sue but that's not me. haahahahha

huh?

That's strange. You're "both" posting from the same computer. <g>

thats my cousin keila and we both in 9th grade and need help but me and her have diffrent questions ?

To determine if the sum of 7 and three times a number b is at least 12, we can set up an inequality and solve it.

Let's start by assigning a variable to the unknown number, b.

Let b represent the unknown number.

Now, we can write the expression for the sum of 7 and three times b as:

7 + 3b

According to the given condition, this sum should be at least 12. So, we can write it as an inequality:

7 + 3b ≥ 12

To solve this inequality, we need to isolate the variable on one side.

Subtracting 7 from both sides gives:

3b ≥ 12 - 7

Simplifying further:

3b ≥ 5

Finally, divide both sides by 3 to solve for b:

b ≥ 5/3

So, the expression for the sum of 7 and three times a number b is at least 12 when b is greater than or equal to 5/3.