Rafael counted a total of 40 white cars and yellow cars. There were nine times as many white cars as yellow cars. How many white cars did Rafael count?

What is the radius of a dodecagon with side lengths of 4 cm

How to write an answer to 3 significant figures

What is the qoutient of 7^-1/7^-2

What is an expression, in simplest form for the perimeter of a triangle which is 3m, 3m, and 3m

Let A, B and C be three events. Construct Venn diagrams for each of the following. Find expressions using only the sets A, B and C and the operators ⋂,⋃, and ' (complement) for the events listed below: a) only B does NOT occurs b) A and C events

Solve the equation for y. 3x + 9y = 27

What is the slope of the line with the equation: 6x + 2y = 8

In a plane, if a line is perpendicular to one of two parallel lines, is it perpendicular to one another? explain your reasoning

If two out of every seven individuals in a population carry a gene for a defective enzyme, what ratio of individuals carry the normal gene?

Factor completely x2 + 64. (x + 8) (x - 8) Prime (x + 8) (x + 8) (x - 8) (x - 8)