Dan has some marbles. Ellie has twice as many marbles as dan. frank has 15 marbles. Dan, Ellie and frank have a total of 63 marbles. How many does dan have

The sum of three numbers is 103. The second number is 7 more than the first. The third number is 3 times the second. What are the numbers

All the quadrilaterals that have congruent opposite sides have four right angles

Assuming a 3% interest rate,$300 invested today in a savings account today will be worth $309 in one year. What will that amount be in 2 and 3 years, and what is the total interest you will earn at the end of the 3years

8 (3x-6) = 6 (4x+8) whats the answer

What is (f - g) (x) ? f (x) = 2.3 - 2x² + 12x - 6 g (x) = 4x² - 6x + 4 Enter your answer in the box. (f - g) (x) =

Sweaters already on sale for 30% off the regular price cost $28 when purchased with a promotional coupon that allows an additional 20% discount. Find the original price. (hint: when you save 20%, you are paying 80%.)

In a class of all girls 24 of the 30 students have brown hair what is the probability of randomly picking a girl with brown hair

The slope of the line whose equation is 8y = 2x 4

Original price of a book: $15.50 discount is 10%

Bee Paul, store manager for Jay's Appliance, is having a difficult time placing a selling price on a plasma television that originally costs $600. Bee knows his boss would like to have a 55 percent markup based on cost.