He ratio of Evan's red toy cars to blue toy cars is 3 : 4. Evan has 12 red toy cars. How many blue toy cars does Evan have?

A) 9

B) 12

C) 13

D) 16

What is the quotient of the complex numbers below? 7-i / 3+i A. 10+i B. 2-i C. 2+i D. 10-i

Function f (x) = x-5 has a domain of 2

Driving from oban to stranraer a driver averages 8 miles per gallon of fuel. if fuel costs 83 cents a gallon how much will be the journey cost in fuel (to the nearest 5 cents

A population of flies, P, over a given amount of time, x, is modeled by the expression P (1+r) ^x. Note: r represents percentage rate as a decimal What does each factor in the expression represent? Select each correct answer.

How long does it take to play 1 song

Negitive 2x minus 3 equals 5 what is x equal too

What is - 54 minus - 25

Two triangles have side lengths 3, 4, 5 and 6, 8, 10, respectively. the triangles are similar to each other. a. True b. False

A 180 ft long board is cut into 3 pieces. The second piece of board is twice as long as the first. The third piece of board is six times as long as the first. What is the length of the first piece of the board?

If f (x) = 3x and g (x) = 5x-3 find gf (x)