What is a scalar matrix

Given 5 + 2 = 7, Choose the related addition sentence that shows the commutative property of addition.

Write as an equivalent expression: (3x+5) (2x+3)

Henry and his mom is making cupcakes for the PTA meeting the have to make 60 cupcakes but the PTA only needs 40 and it's Henry birthday and he needs 30 so how much more cupcakes do him and his mom need to make (addition)

Subtract: 31/8-178=0 (Write your answer as a mixed number.)

3 (x + 6) - 2 (x - 4) > 5 (x + 2)

1. 1 1/3 x ¼ 2. 2/9 : 2/5 3. 1 ¾ : (-2 5/8) 4. 2/9 : z/3

4 (x 2) - 17=35 what is the anwser

In the pair of equations bx-6y=18 and 2x-3y=9, b is a constant. The system of two equations has infinitely many solutions. What is the value of b

Lilly and Maggie decorated their windows with twinkle lights. Maggie used 51 more twinkle lights than Lilly. Fill in the box with the expression that represents the amount of twinkle lights Maggie used.

3 inches of snow in 4 hours whats the rate and unit rate?