20is 80% of what number

You must be at least 48 inches tall to ride an amusement park ride and your little sister is 39 inches tall. How many more inches I must she grow before she may ride? I have to write an inequality

2 (5-d) = 2-4d solve for d

A triangle has one angle that measures 26 degrees, one angle that measures 116 degrees, and one angle that measures 38 degrees. What kind of triangle is it? A. equilateral triangle B. obtuse triangle C. acute triangle D. right triangle

Miles has a train collection with 36 engines 72 boxcars and 18 cabooses he wants to arranged the train cars in equal rows with only one type of train car in each row How many can he put in each row.

Choose the polynomial that is written in standard form. 2x^2 + 3x^4 + 10x^6 4x^4 + 6x^3 + 10x^4 -3x^8 + 9x^2 + 10x -7x^6 + x3 + 10x^8

Angel has 4/8 yard of ribbon and Lynn 3/4 yard of ribbon do Angel and Lynn have the same amount of ribbon? Shade the model to show how you found your answer. Explain your reasoning

Is 43/10 an irrational number or rational number?

What is 3m+m - (9+8) ?

The length of a sandbox is 8 feet more than its width. The area is 20 square feet. Find the length and width of the sandbox. Solve algbraically

1 mango = 1 rupees 1 orange = 5 rupees 1 lemon = 50 ps. the quantity and the price should be 100 when we total it for ex: 2 mango = 2rupees