The ratio of high school students who were homeschooled to those who attended other schools was three to seven. if there were 90 homeschoolers, what was the total number of high schoolers?

210 high schoolers as ratio becomes 90:210

Step-by-step explanation:

we can see that 3:7 can be multiplied if 3 x 3 = 9 then 7 x 3 =21 we just add the zero and find a 90:210 ratio

47 - 90 = 43

43 - 180 = x

x = 137

i think the answer is b