A bag contains purple marbles and green marbles, 31 in total. The number of purple marbles is 1 less than 3 times the number of green marbles. How many purple marbles are there?

Write down the decimal equivalent to; a) 25%. b) 18%. c) 40%. d) 2%. e) 0.15%.

What is 1.44 divided by 0.4

A dress regularly sells for $96. The sale price is $68. Find the percent decrease of the sale price from the regular price. Round to the nearest tenth of a percent.

A room contains 2 parrots, 2 dogs, 1 cat, and 3 turtles. One animal is chosen at random. What is the probability that the animal chosen is a bird? 30 % 25 % 20% 40%

The measures of the angles of XYZ are in the ratio 1:4:10. What are the measures of the angles? (SHOW YOUR WORK)

Enos' monthly mortgage payment was $1800 last year, and on average, 8% of each payment was interest. If Enos itemizes deductions on his federal income tax return, how much can he deduct for mortgage interest?

Mr. Johnson has his newspaper delivered every day. He determines the probability the newspaper is on his front porch is 0.64. The rest of the time he finds the newspaper somewhere on his lawn. What is the probability that Mr.

Suppose the radius of a spherical balloon is growing at the rate of 50 cm/s

What is the completely factored form of t4 - 16?

Which equation has a y intercept of 2 and a slope of 1/2? A. y = 2x + 1/2 B. y = 1/2 x + 2 C. y = 2x + 2 D. y = - 1/2 x - 2