Determine the interval (s) at which f (x) is concave up given that f′′ (x) = -x2+4x+5.

Factor 1052 - 82 into two prime factor

Latoya buys candy that costs $8 per pound. She will spend more than $88 on candy. What are the possible numbers of pounds she will buy?

It takes Heidi 10 minutes to get to school going at a speed of 27 miles/hour. How long will it take her to get to school if she goes 40 miles/hour?

List the terms in the expression 13u2+14u+8

What is 37 divided by 2434

Admission to that the movie theater is $10. Before noon, the theater offers a 20% discount. How much does a movies cost before noon?

Jo estimated the quotient of - 41.71 divided by - 6.03 by rounding each to the nearest integer. What is Jo's error?

How many solutions does the equation 4x+3-1=2 (2x+2) - 2x have explain your reasoning

1+4x=29 what does x = 1+4x=29 what does x =

Lamar bought 20 pounds of dog food for $4.99 for his dog, Buster. The next day, the shop down the street offered 50 pounds of the same brand of dog food for $12.50. Did Lamar get a better deal? ... ?