Willl mark
donald earns the same commission rate on all sales he makes each month. last month, he earned $750 in commission on $9000 in sales. how much more in sales must he make in order to earn $ 1000 in commission? *

$2600

$3000

$5600

$6400

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.