Mr. walker invested $65,100 in two banks, one paying 4.5% and the other 6%. if he gets $231 more on the 6% investment than that on the 4.5% investment, find the total annual income from the banks. urgent pls < 3

Can someone pls ! pls answer all. no explanation needed..

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read