5. Find the area of trapezoid

Please help

How many zeros does the function f(x)=4x3-x2+1 have

In one month jillian made 36 local phone calls and 20 long-distance calls what was her ratio of local calls to long-distance calls for that month?

Carlos by 24 mi and ran 6 miles what is the ratio of the distance carlos ran to the distance he biked