10. Triangle ABC is similar to triangle DEF. 15 cm 5 cm B 3 cm C 9 cm F Which proportion can be used to find the length of DE in centimeters?​

Which expression is not a polynomial?

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?

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.