Sam was given the quadratic equation -2k + 4k2 = -15 and determined that the best method to solve would be to use the square root method. You must support your answer.

Carl wants to buy a television that cost $500 including taxes. to pay for television he will use a payment plan that requires him to make a down payment of $125 and then pay $70.50 each month for six months what is the percent increase from the original cast of the television to the cost of the television using a payment plan.

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.