Do not change the order of the numbers. you may put two numbers together to form a two-degit number.1 2 3 4 5 6 7 8 = 90

Ineed in figuring out this problem.

Use multiples to write two fractions equivalent to 7/9. 14/18, 8/10 6/8, 21/27 10/12, 28/36 14/18, 21/27

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?