There are 20.5 cups of batter in the bowl. this represents 0.4 of the entire amount of batter needed for a recipe. how many cups of batter are needed?

Anyone know? is appreciated! will mark brainliest if correct!

Solve the system of equations y= 3/2 - 1, -x+ y =-3

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.