In a class the ratio of boys to girls is 2:1. There are 8 girls.
Work out the number of boys.

16

Step-by-step explanation:

since the ratio is 2 to 1. 2 as boys and 1 as girls and there are 8 girls. Multiply 1 by 8 and you get 8 girls. multiply 2 by 8 and you get 16 boys.

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

answer: add the !

step-by-step explanation: then we will answer