If g(t)=(3t-5)^2+4t-1, find expressions for each of the following:
(a) g(a)
(b) g(a+2)

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Can someone me with this problem i don't understand i need

Negative 5 1/12 + negative 4 1/4 + 6 3/4