Suppose stamps for postcards cost $0.28 and stamp for first class letter cost $0.44 diego wanted to send postcards and and letter to 10 friends if he had 3.60 for stamps and spends all of it how many postcards and how many letters could he send

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

Which of the following can be used to explain a statement in a geometric proof?

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244