2 1/4 divide by 1 2/5

Which pair of numbers has the same gcf as that of 48 and 78 A) 4 and 34 B) 8 and 18 C) 9 and 15 D) 12 and 30

A herd of 49 horses has 19 white and some black horses. What is the ratio of black horses to all horses?

For a scientific experiment, a physicist must make sure that the temperature of a metal does not get colder than - 75°C or the metal will not be usable. The physicist changes the metal's temperature at a steady rate of - 5°C per hour.

Consider the function f (x) = -2/3x+5. What is f (1/2) ?

Two coins are tossed simultaneously find the probability of getting at least one head

Angela and Ryou are painting a room. Angela has 2 1/2 gallons of blue paint and Ryou has half as much white paint. It will take 2 3/4 quarts to cover each wall.

What is equivalent to 9 (a + 3)

2r^2+3s^3-r2+4t^2-r2

What is 35: into 7,140

Which property does x2+2x=2x+x^2