Arestaurant sells a coffee refill mug for $6.75. each refill costs $1.25. last month keith spent $31.75 on a mug and refills. write an equation you can use to find the number of refills that keith bought.

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

In exponential growth functions, the base of the exponent must be greater than 1,how would the function change if the base of the exponent were 1? how would the fiction change if the base of the exponent were between 0and 1