Question

Juan always saves the same amount from his weekly allowance. The table shows how much he has saved at different times.

Answer 1

He will have saved 52 

Answer 2

Y = ax + b
the difference in numbers is 9 and the difference in weeks is 3 so
a = 9/3 = 3
b = 19 - 9 = 10

the equation is
y = 3x + 10

sub 14 into equation as x
y = (14 x 3) + 10
y = 42 + 10
y = $52