1.) use the properties of addition to simplify: 2w+2-9r+4w-r

2.)simplify: 12.5x-9x-13+2.5x

3.)simplify each expression. which expressions are equivalent?
a.) 16x+24y+32
b.) 8(2x+3y+4)
c.) 4(4x+24y+8)

4.)simplify: -12-4x+9+-10+8x

5.)write the equivalent expression for: 7(3-x)+15x

6.)factor this expression by dividing by the gcf first: 49x+21

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values

25 questions , because they start with 100.  

350-100=250 .  

. 250/10=25

step-by-step explanation:

first take off 100, then what x 10 = 250? that is your answer. (25)

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.