PLS HELP DUE SOON I WILL GIVE BRAINILEST TO CORRECT PERSON Diego runs a 10-kilometer race and keeps track of his speed.

Describe what happened to Diego's speed in the second half of the race (from 5 km to 10 km).

Evaluate 5 + 6 · 2 – 8 ÷ 4 + 7 using the correct order of operations. a. 22 b. 11 c. 27 d. 5

An object in geometry with no width, length or height is a(n):

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?