7*10^7/2*10^5 write your answer as a scientific notation

there's a picture attached if you want to see the orginal question

What is the slope of the line passing through the points (-5, 7) and (-3,5)?

An isosceles trapezoid with a perimeter of 42 inches. each of the congruent non parallel sides is 5 inches long, and the trapezoid is 3 inches tall. how long are the two parallel sides? a. 10 in, 22 in b. 16 in, 16 in c. 10 in, 16 in d. 12 in, 20 in

Iknow the square root of 2 is irrational