If chantel had a marks of 76% before exam
and the exam was worth 30% and after the exam
She has an 80% then what did she score
on the exam?

#12 find the value of x. #13 find the value of the variable.

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

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