Apenny, nickel, and dime are all flipped once. what is the probability that at least one coin comes up heads? a. 1/3 b. 3/8 c. 1 d. 7/8

Will gve pints stars and brainliest

Triangles abc and dfg are given. find the lengths of all other sides of these triangles if: b ∠a≅∠d, ab·dg=ac·df, ac=7 cm, bc=15 cm, fg=20 cm, and df-ab=3 cm.

The ratio of the height of two similar cylinders is 4 to 3 what is the ratio of their volumes