Which expressions are equivalent to x + 2y + x + 2 ? choose all answers that apply:
a
2(x+y+1)

(choice b)
b
2x + 4y +4

(choice c)
c
none of the above

A

2(x+y+1)

Step-by-step explanation:

x + 2y + x + 2

= 2x + 2y + 2

= 2(x + y + 1)

A

2(x+y+1)

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

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.