10x-35+3ax=5ax-7a solve for "a" for which the equation is an identity.

would the answer be 5x+5 or no

In a certain pentagon, the interior angles are a, b,c, d,e where a, b,c, d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

The value √10 and √15 are plotted on the number line