(b) 7 ( 4 + 9) = 7 ( ) + 7 ( ) (c) (-4) + ( -7) = ( -7) + (___)
(d) 6 ( 7 – 4) = 6( ___) _ () × 4
(e) (-2) [6 × ( -5)] = [ ( ___) ×( 6) ] × (-5)

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items