Em uma urna ha 17 bolas verdes e 9 bolas vermelha 6 bolas pretas e 5 bolas cinzas. Qual e o numero de bolas que devemos sacar nessa urna para termos certeza de que obtemos pelo menos 13 bolas da mesma cor

John leaves school to go home. he walks 6 blocks north and 8 blocks west. How far is John from the school? Using Pythagorean Theorem and I know some radicals should probably be in there too.

Devin has a snake. The snake eats one mouse every week which Devin purchases from the local pet store. If m represents the cost of a mouse, and the snake eats nothing else, what expression would represent the cost of snake food for an entire year?

Which number is equal to 5.03?

McKinsey bought 1/2 pounds of coffee for 11 and $82 what was the cost per pound

How do you solve 2x^2 + x - 15 = 0?

A box is 20 cm long. Which of these is closest to the length of this box in feet? (1 inch = 2.54 cm)

While shopping, you see a jacket marked down 20%. If the original price of the jacket is $175, what is the sale price of the jacket

Subtract the sum of - 11ab and - 23ab from the sum of - 19ab and 7ab

Which expression is equivalent to the given expression? 3 (2a + 5) ?

Suppose Eva has 12 3/4 pounds of flour. The day's baking will require that amount. How much flour will Eva need?