2x+3y=-5
3x-5y=21

the y-value of the solution is
a) 2
b) 7
c) -3
d) no solution

step-by-step explanation:

a'(12.5,11.25)

slope=(y1-y2)/(x1-x2)

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!