Sergio has decided to diversify his investments in the following way:
$4,000 in an account earning 3.2% simple interest

$4,000 in a savings account earning 2.1% interest compounded annually

$7,500 in a certificate of deposit earning 5% interest compounded quarterly

how much total interest will sergio earn on his investments at the end of 4 years?

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Your weight on the moon is relative to your weight on earth. neil armstrong weighed 360 lbs. in his moon gear while on the earth, but on the moon he only weighed 60 lbs. how much would a 150 lb person weigh on the moon?