Select the points that lie on the function h(x) = 3x2:

a.) (1, 3)
b.) (1, 9)
c.) (-1, -3)
d.) (-1, 3)

Plug in to the equation the values of the abscissas of the ordered pair and solve for h(x)

A. (1, 3)   ;    h(x) = 3(1²) = 3     Equal 
B. (1, 9)   ;    h(x) = 3(1²) = 3     Not Equal 
C. (-1, -3) ;    h(x) = 3(-1)² = 3   Not Equal
D. (-1, 3)  ;    h(x) = 3(-1)² = 3   Equal
Thus, the answer is letters A and D. 

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!