If angle A is 70 degrees and angle B is 45 degrees the what is the length of side b

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n

What is the solution to the system of equations? y=1.5-3 y=-x

Light travels at 186,000 miles per second. light takes about 1 1? 3 seconds to travel from the earth to the moon. calculate the distance between the earth and the moon based on the speed of light.