Aschool basketball team has an expense account and a fundraising account. after tt weeks, the balance of the expense account is (400−40t)(400−40t) dollars and the balance of the fundraising account is (150+32t)(150+32t) dollars. a. write an expression in simplest form that represents the total amount (in dollars) in both accounts after tt weeks. an expression is ( 550−72t) dollars. b. what is the total amount (in dollars) in both accounts after 12 weeks? amount after 12 weeks: $

a. 550-8t

b. 454 dollars

Step-by-step explanation:

a. Calling t the number of weeks, the balance in the first account is

while the balance in the second account is

So, the total amount in both accounts is the sum of the balances of the two accounts:

b. To find the total amount in both accounts after 12 weeks, we just need to substitute t=12 into the total balance, and we find:

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.