Which of the following describes point c
(-2,1)
(-2,-1)
(1,-2)
(-1,-2)

What is the solution of log2  (3x  -  7)  =  3? 4 5

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?