Please help me with this math problem

3 feet/second

Step-by-step explanation:

from the graph we see that  in 4 seconds you get to the 12 feet height

the rate of change is the slope of the line so is

how much you rise ( go up) / how much you run (go sideways)  = 12 feet/ 4 seconds = 3 feet/second

The rate of change is 3 feet per second.

Step-by-step explanation:

This can be found by looking at the intervals displayed to the left side of the graph.

The intervals are measured by multiples of four.

Then, you can do a measurement by taking two coordinate pairs and finding the rate of change.

Let's use, the coordinate pairs (2,6) and (4,12).

Plug it into the slope formula.

m = y^2 - y^1/ x^2 - x^1

m = 12 - 6/4 - 2

m = 6/2

m = 3

Therefore, the ROC is 3 feet per second.

your answer would be b

step-by-step explanation:

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)