6 (9k - 10) + 7
pls help i need like instructions ah

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).