1. -2b+9-(-5b) 2.y+12-(5y)-(3y)
3.0.3z -13-4z+6.7
4.-5.2+8.2-7.8
5.-9c-(-2)-(12c)-(5)
please show work

Acircular hot tub located near the middle of a rectangular patio has a diameter of 48 inches. the patio measures 11 feet by 6 feet. what is the area of the patio that is not covered by the hot tub?

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots