Jess has 4y + 2 lollipops and Maddy has hy - 4 lollipops. Write an expression in simplest form to show how many lollipops Jess and Maddy have in total. Find the total number of lollipops if y = 2.
Incorrect Work Solution
(4y + 2) + (6y - 4)
= 10y - 2
= 8y
=8(2)
=16
Identify and Explain the Error

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88