Mrs. gibbs goes to the store to buy aa and 9v batteries. the store has 12 aa batteries and 15 9v batteries in stock. mrs. gibbs needs at least 6 aa batteries. in all, she wants to buy at least 20 batteries.
mrs. gibbs buys 7 aa batteries.
how many 9v batteries could she buy?
select all that apply.
11
12
13
14
15

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2