At midnight, the temperature was 30° F. By 6:00 a. m., it had dropped 5° and by noon, it had increased by 11°. What was the temperature at noon?

Write 17/20 as a decimal and as a percent.

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?