Use elimination to solve
x-5y=0
2x-3y=7

X-5y=0. (times the top row by 3 and bottom 2x-3y=7. by 5 to get the y values the same)

3x-15y=0
10x-15y=35

as the signs before the y value are the same, subtract the other top values from the bottom. (all excluding the y values).

so: 3-10=-7 and 0-35=-35

-7x=-35
-x=-5
x=5

substitute your x back into any of the two equations, here I'll use 2x-3y=7

2(5)-3y=7
10-3y=7
10-7=3y
3=3y
y=1

hope this helped

29. because you will divide each number of months by 12 to find the number of years. which would mean, 5, 12.5, 16, 45, 50, 72.5. which is crazy. anyhow, i think you find the median in the middle. and yea hope your test goes good