Henrieta divided 0.80 by 20 as shown. is her work correc? if not , explain why and give a correct response.

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

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Give me the equations of two lines that have the same slope but are not parallel.