What is 7.6 as a mixed fraction

Select the quadratic that has root x = 8 and x = -5

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²