If anyone has seen my other post this is my last one, I just really need to bring up my grade and I’ll really appreciate your answer if you answer truthfully and quickly!! (20 points)

55 miles per hour

Step-by-step explanation:

given the originally traveled 40 miles in one hour gives us 40 mph, 180 miles in the last 3 hours gives us an average of 60 mph for the second part, 40+60+60+60 (for the 3 hours going that fast) is equal to 220, divide that by 4 to give us our average of 55 mph

55 mph

Step-by-step explanation:

40 + 60 + 60 + 60 Divided by 4 = 55mph

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.