You are renting a surfboard for the day. The surfboard rental fee is $25 with an additional charge of $7 per hour. You have at most $60 you can spend on surfing. How many hours can you rent the surfboard? Define the variable, write and solve an inequality, and answer the question.

On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 104 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 105 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?