Solve the following system of equations by the substitution method. 8x = 2y + 5 3x = y + 7 what is the solution set?

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Driving 75 mph, it takes alicia 2 hours to reach the airport to go on a vacation. it then takes her 4 hours to get to her destination with the jet traveling at a speed of 400 mph. how many miles does alicia travel to get to her destination?

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15