If a car travels at a speed of 25 miles per hour for t hours then travel s 45 miles per hour for m hours what does the expression 25t + 45m represent

Find the area of an equilateral triangle with a side of 6 inches

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?

Find the probability that -0.3203 < = z < = -0.0287 find the probability that -0.5156 < = z < = 1.4215 find the probability that 0.1269 < = z < = 0.6772