Can u me show my work and answer the question

The total duration of the trip is 5 3/4 hours. Thus, you just need to calculate each segment separately.

Since you know he drove 168 miles in 3 1/2 hours, you only need to calculate how far he travelled for 2 1/4 hours.

Speed is distance per unit time.

Calculate 168 / 3.5h which will give you 48 miles per hour. That is the speed at first.

After that, the speed increases by 5miles per hour so it becomes 53 miles per hour.

calculate the distance (s × t) = 53 × 2 1/4

Add the two distances together which gives you 168 + (53 × 2 1/4) = 287.25 miles.

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)