if 240 of the 420 students in the building were girls, what was the ratio of boys to girls in the building?

Find the Gp of 30th of 3,9,

Can someone explain to me how to find the vertex form of this equation? y = - x^2 + 12x-4 Do i use the - b/2a formula? I just need this to be explained better biased on a equation i need to solve.

Which of the following is equivalent to (2x + 2) (3x + 1) 6x squared + 2 or 5x squared + 8x + 3

Which step should be taken to isolate the variable in the following equation? 7d = 49

115+150+150+150+150-100

One of the solutions to x2 - 2x - 15 = 0 is x = - 3. What is the other solution? Ox=-5 Ox = - 1 0 x=1 x = 5

Use scientific notation to estimate the following: How many times greater is Mount Everest's highest peak than Mount Olympus's? Mount Everest - 8,849.87 meters Mount Olympus - 2,919.07 meters

Round 9.725 to The nearest tenth

Find the three arithmetic means in this sequence 14 and 26

Esteban has a big jar in his room. He has 600 coins total, and 240 of them are pennies What percentage of the coins are pennies