Which expression is equivalent to - 21?

A. 9 - (-12)

B. 9 + (-12)

C. - 9+12

D. - 9-12

A recipe that serves 24 people calls for 4 liters of lemon-lime soda, 2 pints of sherbet, and 6 cups of ice. How much of each ingredient would you need to make an identical recipe that serves 12 people? What bout for 36 people?

A random variable x is uniformly distributed between 45 and 150: to 4 decimal places, what is the probability that x = 48?

54 divided by 34798 equals

How do I write 9.23 in words

Write the words to match the expression 24 - (6+3)

A printer takes 5mins to print 90 copies of a repor. At this rate, how many copies of the same report can it print in 1/2 hours

What are the coordinates of the vertex of the graph of the function y=-x^2+6x-11 the options are: (3,-2) (3,16) (-3,-29) (-3,-20)

The annual amount A (in billions of dollars) Americans spent on meals and beverages purchased for the home for the years since 2000 can be modeled by A (C) - 286 + 880 where t represents the year, with t = 3 corresponding to 2003.

Carol is sixty-six inches tall. This is twenty inches less than two times Mindy's height. How tall in Mindy?

Assume running consumes 108 calories per mile. If you run 11 - minute mile what is your average power output, in watts, during a 2-hour run?