20 is 83/1/3% of what number?

2cos2θ-cosθ-1=0 for - 180°≤θ≤180° I don't get how it is solved

X/3 - 5 = - 1. What is x? Show solving

Which rule describes a translation that is 8 units to the right and 2 units up? (x, y) (x - 8, y + 2) (x, y) (x - 8, y - 2) (x, y) (x + 8, y - 2) (x, y) (x + 8, y + 2)

The Jurassic Zoo charges $8 for each adult admission and $5 for each child. The total bill for the 160 people from a school trip was $863. How many adults and how many children went to the zoo?

What is 5/9 multiplied by 4 1/2

Store is giving away $10 coupon to every 7th person and $25 coupon to every 18th person. Which person will be the first for both coupons?

Boxes of cereal usually cost $4 but they are on sale for $1 off a gallon of milk costs $3 the expression 4b - 1b + 3 can be used to find the cost in dollars of buying b boxes of cereal and a gallon of milk write the expression in simpler form

I need to find the answer to this equation. 4+1-3x + 10 = x

Round all answer to the nearest tenth. 1. Vince wants to make a square patio in his yard. He has enough concrete to pave an area of 130 square feet. How long can a side of his patio be?

Tracy Ate 10 Donuts that Week. Her Brother Ate 5. If Tracy Has Eaten 50 donuts how much donuts would her brother have ate?