Please help with inequalities and exponentials

A.b ≤ 40

Step-by-step explanation:

Janice weighs 130 pounds so you must take away his weight from the weight limit (250 pounds). That will give you 120. 120 pounds can still be put on the truck. Since each block weighs 3 pounds, you have to divide 120 divided by 3, giving you 40. Janice can carry up to 40 blocks on the truck each trip.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.