According to an airline, a particular flight is on time 87% of the time. suppose 45 flights are randomly selected and the number of on time flights is recorded. find the probabilities of the following events occurring. a. all 45 flights are on time b. between 38 and 40 flights (inclusive) are on time

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?