All 231 students in the math club went on a field trip. Some students rode in vans which hold 7 students each and some students rode in buses which hold 25 students each. How many off each type of vehicle did they use if there were 15 vehicles total

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 x-intercept and y-intercept of the line. 3x + 5y = −15

What is the gcf of 20c^3-5c^4+30c^6