Robert duncan made a $1500 deposit to savings account paying 1.6 annual interest compounded semi annually if he kept the money on the deposit for six months how much interest did robert earn?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

Vinny is interviewing for a job.he wants his take home pay to be at least $42,000.what is the least salary he can earn if he pays 25% income tax?

Your company will replace the asphalt roofs on all the buildings at the factory complex shown below. the buildings have flat roofs. you charge according to the total roof area. what is this area, in square yards?