Will give for the data in the table, does y vary directly with x? and if so write an equation for the direct variation.

x= 16,32,48

y= 4,16,16

a. yes; y=2x
b. yes; y=4x
c. yes; y=8x
d. no; y does not vary directly with x

2a+7+4ahow many terms? how many variables? any like terms? yes noif yes, which ones? what are the coefficients? any constants? yes noif yes, which ones? simplify the expression by combining like terms and constants: how many terms now?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with