I don't know, how can I solve this.

• When the moon is exactly half full, the earth, moon, and sun form a right triangle. At that time, the angle formed by

the sun earth and moon is 89:85. If the distance from the earth to the moon is 240,000 miles, estimate the distance

from the earth to the sun. Write a exact solution, and then round to two decimal places.

• The wheels of a car have radius 9 in. and are rotating at 600 rpm. Find the speed of the car in mi/hr. There are 5280ft in a mile.