If donald duck has an area in his garden that has a set of complementary angles and one angle is 40° what are the other angle

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m

Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?