f(x) = sqrt(x) - 8 Find f ^ - 1 * (x) and its domain. O A. f^ -1 (x)=x^ 2 +8;x>=-8 O f^ -1 (x)=(x+8)^ 2 ;x>=0 c . f^ -1 (x)=(x+8)^ 2 ;x>=-8 OD f ^ - 1 * (x) = x ^ 2 + 8 ; x >= 0

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

How do i do this activity, is appreciated

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.