Iforgot how to slove a system of equations algebraically
y=x-1. y=-x+3

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?