Mr. Smith'a cell phone service cost $60 per month plus $0.10 for each minute (m) of long-distance calls. His bills for September was $85. How many long distances minutes did he use?

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

One integer is 8 times another. if the product is 72, then find the integers

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?