Karl is comparing the interest rates for accounts at two different banks. He will deposit $600 into an account and will not make any additional deposits or withdrawals.
· Bank Q offers 1% interest compounded annually.
• Bank R offers 1.5% simple interest.
Which statement about these accounts at the end of 2 years is true?
A
The account at Bank Q will earn about $6 more in interest than the account at Bank R.
The account at Bank R will earn about $18 more in interest than the account at Bank Q.
The account at Bank R will have a greater balance than the account at Bank Q.
D
The account at Bank Q will have a greater balance than the account at Bank R.

Help please

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

Asphere has a diameter of 10 in. what is the volume of the sphere?

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?