The sum of eight and a number is one hundred. what is the number?

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor