Why do my work seem easy but i messed up but i dont see where wit these tricky variables

Carmen begins her next painting on a rectangular canvas that is 82.7 cm long and has a area of 8,137.68 cm2. will the painting fit in a frame with an opening that is 82.7 cm long and 95 cm wide? explain

What dimensions can créate more than one triangle ?

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.