Kevin shot 18 arrows. He hit the target 12 times. Select the statement about Kevin’s hits and misses that are true

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints

Could someone me with this question i’ve been stuck on it for 20 minutes

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?