Sally's dance school had 60 students last year. This year there are only 48 students enrolled. By what percent did the enrollment decrease? Show all of your work to justify your answer.

20%

Step-by-step explanation:

60-48=12

changed ÷ original x 100%

= 12 ÷ 60 x 100%

= 20%

whose power in the senate is equal to the power of the speaker of the house?

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.