Solve for t. t – 15.7 = 53.4 a. 38.7 b. 68.1 c. 69.1 d. 37.7 devon spent $12.40 at the mall on friday and $14.80 on saturday. arthur spent the same total amount as devon, but arthur spent only $11.50 on friday. how much did arthur spend on saturday? a. $27.20 b. $15.70 c. $14.80 d. $16.70 if |c| = 9, then which are possible values of c? choose exactly two answers that are correct. a. –3 b. –9 c. 9 d. 3 what is the perimeter of this shape? a. 60 m b. 88 m c. 82 m d. 76 m
1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?