Jala put $600 in an interest bearing account with a annual compound interest rate of 5%. Jala determined that after seven years, she will have a total balance of $844.26. Using the rule of 72, t = StartFraction 72 Over r EndFraction how many more years will it be before Jala’s $600 doubles in value? Round to the nearest tenth.
3.3 years
7.4 years
10.3 years
14.4 years

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

I’m really confused and need your assist me with this question i’ve never been taught

Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite. x + y = 5 x + y = 7 {} 1 solution infinite