Which value is in the domain of f(x)? f(x)= 2x+5, -6

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

If johnny ate 5 cans of sugar, but in the kitchen they only had 3. what did johnny eat? (he found a secret stash btw.)

Marion has a bicycle that she is planning to take for a ride. the rim of the rear wheel lies 41 cm from the center of the wheel. the tire itself has a thickness of 3 cm. in order for marion to ride her bicycle 96,712 cm approximately how many rotations will the rear wheel make?