PLESS I BEGG FOR YOUR HELP U GET BRANILY AND A LOT OF POINTS Louise measured the perimeter of her rectangular scrapbook to be 150 cm. If the scrapbook is 42 cm wide, how long is the scrapbook?
A.
75 cm
B.
31 cm
C.
66 cm
D.
33 cm

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.