What system of equations is shown by the graph plsss help I have no idea how to do this without a calculator and the teacher didn’t let us bring ours home and I need help

y-x=15 and 25+2x=y

Step-by-step explanation:

we can figure out both of these have a positive slope, so we can rule out any option with an equation that has a negative, or slope of 0.

that means we can rule out 1 and 3.

The blue line looks like it has a y intercept of 15, and the only equation that has that is in option 2, which is y-x=15 and 25+2x=y

we can convert these to slope intercept form

so

y=x+15 and y=2x+25

you can double check your slope and y intercepts and will find that this is correct

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

$6.42

step-by-step explanation: