Daniel has $13.58 in his bank account from interest earned. Kenneth has an account that earns 3 times as much interest, in dollars, as Daniel. How much does Kenneth have in his bank account from interest?

$40.74

Step-by-step explanation:

Daniel's bank account interest is $13.58.

Kenneth's bank account interest is 3 times that of Daniel's account interest.

Hence the amount of interest in Kenneth's account shall be = 3 × $13.58

= $40.74

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: