An image point after a 180° rotation is z'(9, 2). what were the coordinates of the pre-image point?
a. z(2, 9)
b. z(-9, -2)
c. z(-2, 9)
d. z(2, -9)

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?