Please answer this question now

85.75 square feet

Step-by-step explanation:

side triangle area is 1/2(5)(10) = 25

3 triangles 25 x 3 = 75

base triangle is 1/2(5)(4.3) = 10.75

75 + 10.75 = 85.75

i believe the answer is the polygon, heptagon.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.