During a sale, a dress is marked down from a selling price of $90 to a sale price $72 what is the percent markup

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Consider circle o, where and . m∠bpd °. °.

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x