Ineed with these two questions !

javier owes $4,289 on a credit card with 17.5% interest rate. what is the monthly payment he should make to pay off the debt in 12 months, assuming he does not charge any more purchases with the card?

a. $71.43
b. $357.43
c. $392.20
b. $877.24

carl owes $3,760 on her electronics boutique credit card with a 22.4% interest rate. she owes $3,214 on her miscellaneous goods credit cards which has a 18.7% interest rate. what is the total monthly payment needed to pay off both cards in three years, assuming she makes fixed payments and does not charge any more purchases with the card?

a. $191.22
b. $251.30
c. $258.42
d. $264.33

What is the simplified form of square root of 400 to the 100th power ?

Abcd is reflected across the x- axis, then rotated 90 clockwise about the orgin, and finally reflected across the line y= x to form a’ b’ c’ .

Our star pitcher, foster enlight, can throw a pitch so fast that it gets to the catcher’s mitt before it leaves foster’s fingers! if the team wins a game then the probability that foster was pitching is 0.8 but only if foster had at least one day’s rest since his last pitching assignment. if foster does not have a day off and the team still wins, the probability that foster was pitching drops by half of what it was on the previous day. if the team wins three games in succession from the toronto tachyons and foster pitched in game #2, what is the probability that he pitched in one or more of the other games? (assume that foster did not pitch on the day before the first game of this three game series.)