Solve each equation mentally. 5/2 times x = 1

X times 7/3 =1

1 divided by 11/2 = X

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

Sketch one cycle if the cosine function y=2cos2theta

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"