Writing Expressions

• 12(J + T + 15)

• 12(J + 15) + 12(T + 15)

• 15(J + T) + 12

• 12(J + T) + 15

• C = 1.08 - 0.15p

• C = 1.15p + 0.08p

• C = 1.08(0.85p)

• C = 0.85p + (0.08)0.85p

• C = p - 0.15p + 0.08p

• $190.08

• $120.80

• $118.80

• $79.20

• 7(s + d) - 7(s + d)(0.25)

• 0.75(7s) + 7d

• 7(s + d) - 25

• 25(s + d) - 7

The owner of a garden center pays $12 for each birdbath. She sells them for 55% more than she paid. Decide whether each expression represents the selling price for b birdbaths. Choose all that apply.

• 12b + 1.55(12b)

• 12(0.45b)

• 12b(1.55)

• 12(0.55b)

• 12b(1 + 0.55)

• 10x - 12 + x + 10x - 12 + x

• 8(2.5x - 3) + 5x

• 2(10x - 12) + 2x

• 4(2.5x - 3) + x

• 2(11x - 12)

The perimeter of a square is represented by the expression 32x - 12.8. Write an equivalent expression for the perimeter of the square. (do not put any spaces in your answer)

(a)  

Joel wants to buy a new tablet computer from a store havin a 20% off sale on all tablets. The tablet he wants has an original cost of $190. He also wants to make sure he has enough money to pay the 5% sales tax. Joel uses the expression 0.95(190)(0.8) to calculate his total. Is Joel's expression correct?

• Correct

• Incorrect

Joel wants to buy a new tablet computer from a store having a 20% off sale on all tablets. The tablet he wants has an original cost of $190. He also wants to make sure he has enough money to pay the 5% sales tax. How much will Joel pay for the tablet?

• $161.50

• $159.60

• $239.40

• $218.50