Which expression represents the following calculation?

Add 450 to 348, and then multiply by 7

(450 + 348) x 7

The cost to rent a bicycle is $10 plus $8 per hour.

Which expression shows how to calculate the total cost to rent a bicycle for 4 hours?

$10 + (4 x $8)

Alonzo, Enio, and George bought a watercolor paint box for $15.35 and 3 brushes for $2.25 each. They had a coupon for $2.00 off their purchase. They split the remaining cost equally. Which expression could be used to find the amount each person paid?

To find the total cost of the paint brushes, we can multiply the cost per brush by the number of brushes:

3 x $2.25 = $6.75

To find the total cost before the coupon, we can add the cost of the paint box and the brushes:

$15.35 + $6.75 = $22.10

After the coupon is applied, the total cost becomes:

$22.10 - $2.00 = $20.10

To find the amount each person paid, we can divide the total cost by the number of people:

$20.10 ÷ 3 = $6.70

Therefore, the expression that represents the amount each person paid is $20.10 ÷ 3 or $\boxed{\frac{20.10}{3}}$.

Insert parentheses to make the statement true.


12
+
6
×
11

7
=
72

(12 + 6) × (11 - 7) = 72