Nicole’s job pays her salary plus commission. she earns a daily salary of $60 plus 15% commission of her total sales. on monday, she earned a total of $63.75. what were her total sales?

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.