Explain you can use the whole number expression 248 divided by 4 to check that your answer to exercise 2 is reasonable

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )