Which expression is equivalent to (4p^-4 q)^-2/ 10pq^-3?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

The table shows how many people went on a roller coaster during 3 days. sean wants to know if the total of number of people is greater than 800. how can you answer sean's question without actually computing the total? explain. friday 158 people, saturday 292 sunday 278

Mathematician needed for homework plz 20 points