Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.70 per mile to rent the same truck. how many miles must be driven in a day to make the rental cost for company a a better deal than company b's?

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal