What is this answer 9=4a+13 and this other question 13=5m-2

A postal carrier can deliver to 130 houses in a 2.5 hour period. At this rate, how many hours will it take to deliver to 312 houses? I just need to know the rate for my homework answer.

Quadrilateral is a rectangle with vertices D (-8, 2), E (2, 7), F (5, 1), and G (-5, - 4). Find the area of the rectangle.

How do you solve - 35+5r=4 (r-7)

The solution to - 35 x = - 105 is - 3. TrueFalse

Four trucks were used to make deliveries. the drivers recorded the number of miles driven and the amount of gasoline used.

2.85 kilograms of sugar is mixed with 3.5 kilograms of flour, what percent of this mixture is sugar

What is the measurement of the unknown fourth interior angle of this quadrilateral? A) 80° B) 95° C) 100° D) 115°

Whats 1+0? its so hard, i really need an answer! does anybody know it?

Select the correct answer from each drop-down menu. What types of insurance should Selina purchase given her situation? Selina wants to cover the loss of potential damages to her house in case of a natural calamity, such as a tornado.

Carmen was sewing a teddy bear. She made 3 stitches then had to undo 2 of them. She again made 3 stitches then had to undo 2. how many stiches would she have to make to get 6 good stitches if this pattern continues?