Can someone please answer these 3 math questions?

1) Russell deposited $650 in a savings account that earns 3% simple annual interest. If he makes no other deposits or withdraws, what will the balance of Russell's account be after 6 years?





A) $117


B) $659


C) $767


D) $1,170





2) Karim borrowed $120 from his older brother for the purchase of a skateboard. He promised to pay back the loan in 6 months at a simple annual interest rate of 15%. How much will Karim owe his brother at that time?





A) $108


B) $129


C) $138





3) Nate invested $3,800 in a certificate of deposit with a simple annual interest rate of %4. How much interest will he earn after a year?





A) $152


B) $950


C) $1,520


D) $3,952|||Remember, %= x/100, so:





1) 3% (3/100= .03


(.03 X 650) X 6





2) 15% (15/100)= .15


(.15 X 120) + 120





3) 4% (4/100)= .04


(.04 X 3800)





Work those out and there you'll have your answer.|||I Will not give you the answer becuase it's cheating, but I will teach you how:


.03=3%


(.03x650)x6





problem two:


.15=15%


(.15x120)x6





Problem three:


.04=4%


(.04x3,800)x1|||they are all A