Use mental math to simplify each expression
1. 36+12+4
2.19.2+0.6+12.4+ 0.8
3.2•16•10•5
4.12•18•0•16

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

If g(x) is an odd function, which function must be an even function?

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.