Answer:
i don't know
Step-by-step explanation:
i seriously don't know
10000:100*11=1100 income per year
21000-10000=11000 need to have income
11000:1100=10 years will pass time
16 bc all sides of a square are congruent and area = LxW so 4x4=16
3: terms/ 12, 8r, -3, s, -5, 15t coefficients/ 8r, 1s, 15t
