Ida is walking dogs to pay for sports equipment. she gets paid $10 for every dog walked and made a total of $70 on saturday. write an equation to show how many dogs ida walked saturday.

a.10x = 70
b.10 − x = 70
c.70x = 10
d.70 − x = 10

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.