Jonah went on a vacation to Germany. He took $1,800 with him. After 3 days, he had $1,254 left. How much did he spend in the first 3 days? Explain how you got your answer.

When y’all answer can y’all explain too !

The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.