The sale tax rate in brads town is 4.25%. if he buys 3 lamps for 22.49 each and a sofa for 829.99, how much sales tax does he owe?

Tan198=asin164=? how to solve this? ?

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle