The town of Berryville has noticed an increase in swimming accidents at the lake since the city council lowered the age requirement for lifeguards last
summer. Some members of the city council want to raise the age requirement
for lifeguards in order to reduce the number of swimming accidents.
In the above experiment, what is the control variable?

Abaker makes 186 cookies. some are chocolate chip and some are oatmeal raisin, and both kinds are made with and without nuts, as shown in the table above. because they are more popular, the baker made 2/3 of the cookies chocolate chip. if a chocolate chip cookie is chosen at random, what is the probability that it will have nuts? a) 21/93 b) 21/62 c) 41/93 d) 21/41

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left