Find the sum of the following arithmetic series: (a) 6-5-16 - -115 (b) 21
(c) 13 + 6 -1 - -106
Find the sum of the first 500 odd numbers.
​

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?