The amount of weight that sam loses is directly proportional to the number of hours he spends exercising. if sam loses a pound of weight for each 3 hrs of exercise, how many hours must he spend exercising to lose 25 lbs?
a) 25 hrs
b) 50 hrs
c) 75 hrs
d) 80 hrs

Savannah had 40 iris blooms last year this year she had 15% more iris blooms how many more hours blooms did savannah have this year

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1