Just do 3^2 * 3^2 he is incorrect because he multiplied the exponents and he was suppose to add them together. the correct answer should be 3 to the 4th power which is 81
Answer:
6.6 repeating = 6.7
46/7 = 6.7
6.8 = 6.8
47(root) = 6.9
Some of these answers have repeating numbers so I just rounded em.
Hope this helps :D
I think this has to do with P=IRT where P is the amount, I is the interest amount R is the interest rate and T is the time so we plug in the numbers we have and get $30 for interest amount so our total amount would be 530.