If r = 6 and t = 8, which equations are correct? Select all that apply. A. r2 + 4t – 5 = 63
B. –4r – t + 10 = –22
C. –3r + 7t – 9 = –64
D. 2r + t2 + 13 = 41

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

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