The ratio of the number of girls who chose blue or green as their favorite to the number of girls who chose pink or red as their favorite was

The ratio is  or

Step-by-step explanation:

Let

x -----> the number of girls who chose blue as their favorite

y ------> the number of girls who chose green as their favorite

z ------> the number of girls who chose pink as their favorite

w ------> the number of girls who chose red as their favorite

see the attached figure to better understand the problem

we have

x=4

y=2

z=5

w=1

we know that

The ratio of the number of girls who chose blue or green as their favorite to the number of girls who chose pink or red as their favorite is

substitute the values

Simplify

answer: d. $20

step-by-step explanation:

just took the test

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2