The temperature at 7:00 am was -5°F. By 4:00 pm, the temperature had risen 9 degrees and by 10:00 pm the temperature dropped 11 degrees. What was the temperature at 10:00 pm?

A 4°F
B -16°F
C -7°F
D 25°F

Solve the system of equations. y= 2x y= x^2 - 15

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?