I dont know how to do this pls help me ​

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start