The diameter of a circle and the circle of and the number of 1 cent coins that would fit inside of it inverse and direct word problems

Find the missing variable for a parallelogram: a = latex: 28in^2 28 i n 2 h = b = 6.3 in (1in=2.54cm)

Tell whether the two rates form a proportion

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details