Marilyn carries a tip-calculator card with her. It lists the amounts for 15% and 20% tips on whole-dollar values up to $100.00. Her daughter notices a pattern. She says, "For each dollar the cost increases, the tips in the 15% column increase by $.15."

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Solve for n. round to the tenths place, if necessary. 14.2 cups of flour6 loaves of bread= 20 cups of flour n

The perimeter of ? cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.