James fenced his backyard the perimeter of his fences 20 feet and the width of his yard is 2 feet wide use the perimeter formula to find the length of his rectangular yard and inches P equals 2L plus 2W

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.