Shaun collects coins. he has 21 quarters and 28 pennies in a jar. what is the ratio of quarters to pennies in the jar?

Need on this geometry question. explain how you did it.

∆red ≅ ∆ by rule will give brainiest if possible

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?