Olivia has 18 marbles, mason has 24 marbles, nia has 63 marbles and eric has 75 marlbes. each person packaged their marbles into gruops of 9. after the marble were packaged who will have marbles left over

Could someone me with this question i’ve been stuck on it for 20 minutes

Y= a(x-3)squared-1 what is the value of a

1) your friend taylor missed class today and needs some identifying solutions of systems. explain to taylor where to find the solution(s) of any system using its graph 2)taylor graphs the following in desmos and decides that f(x) = g(x) at x = 0, x = 1, & x = 3. f(x) = 2x+1g(x) = 2x2+1 provide taylor some feedback that explains which part of the answer was incorrect and why.