Find multiplicative inverse of -13​

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.