What's the digit in the tenths place

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need

Consider the function f(x)=-5x+3 what is f(-2)

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827