Giselle bought a dress for $35 and 3 t-shirts. she used a coupon for $2.50 off each t-shirt. the total cost can be modeled by the expression 35+3(n-2.5).what does n-2.5 represent

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

Twelve less than a number is at most 20