Given the quantic solve for x . 2x⁵-6x³-4x²+2x+4​

Which equation can be used to solve for the unknown number? seven less than a number is thirteen. n-7=13 7-n=13 n+7=13 n+13=7

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?