Probability,

There are 100 students 10 who are left handed

twenty are selected at random

what is the probability that 80% of the students are right handed

Angela paints a wall that has an area of 42 2/3 square yards. She uses 1 1/3 gallons of paint. What is Angela's rate of paint coverage in square yards per gallon

A decimal number for which the decimals come to an end is _ decimal?

A^2-8ab+16b^2=81, find a-4b

Find the perimeter and area (A= bh) of the triangle, 14. 12 cm 16 cm

What's the estimation of 9.8?

If P dollars is deposited in a savings account that pays interest at a rate of r % per year compounded continuously, find the balance after t years. (Round your answer to the nearest cent.) P = 100, r = 2 1/2, t = 12

Germ theory describes true relationships between microorganisms and how people get sick. What is a difference between germ theory and scientific laws?

Y=4x+3 y=-2x-9 solve for substitution

Gary buys a 3 1/2 pound bag of cat food every three weeks. gary feeds his cat the same amount of food each day. which expression can gary use to determine the number of pounds of cat food his cat eays each year?

Adriana uses 1 1/4 cups of pretzels for every 1/2 cup of raisins when making a snack mix. What is the number of cups of pretzels Adriana uses for 1 cup?