Shane can type 275 words in 5 minutes. Hillary can type 240 words in 4 minutes. Who is the fastest at typing and what is their unit rate?

A

Shane can type 1,375 words per minute.

B

Shane can type 55 words per minute.

C

Hillary can type 960 words per minute.

D

Hillary can type 60 words per minute.

What is the pattern in the values as the exponents increase?

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.