Savvas Envision Gr. 7, Ch. 4 Review

Haddie makes and sells knit scarves. Next week she will pay a $25 fee for the use of a booth at a craft fair. She will charge $12 for each scarf at the fair. Write an expression to determine Haddie's profit for selling x scarves after paying the fee for the use of the booth.

• 25+12+s

• 37s

• 12s-25

• 37-s

The cost to buy p pounds of potatoes at $0.32 per pound and n pounds of onions at $0.48 per pound can be determined by using the expression 0.32p + 0.48n. How much will it cost for 4.5 pounds of potatoes and 2.5 pounds of onions?

• $2.64

• $0.48p + $0.32n

• $2.96

• $5.60

• m - 6

What property allows you to move terms so you can combine like terms?

• Commutative Property

• Associative Property

• Distributive Property

• Identity Property

Simplify the following expression: -8w + (-4z) + 2 + 6w + 9z -7

• 14w + 13z - 5

• -2w + 5z -5

• -2w + 13z -5

• 93wz - 5

Simplify the following expression: -6 + (-2d) + (-4d) + 3d

• 9d - 6

• -6d + 3d -6

• 3d + 6

• -3d - 6

Expand the expression: 3.5(-3n + 4)

• -10.5n + 14

• -10.5n + 4

• 10.5n + 14

• 10.5n - 14

Factor the expression: 63a - 42b

• 7a(9-6b)

• 3(21a - 14b)

• 21(3a - 2b)

• 21ab

Factor the expression: 81y + 54

• 27(3y + 2)

• 9y (9+ 6)

• 9(9y + 7)

• y(81 + 54)