Choosing two balls, without replacement from a box containing 4 white balls and 3 black balls. What is the probability of choosing at least one black ball?

If a circles diameter is 13. What is it's Circumference?

1.) in a litter of 7 kittens each kitten weighs less than 3.5 ounces find all of the possible values of the combined weights of the kittens 2.) To Cover a rectangular region of her yard penny needs atleast 170.

Physicist use models to work out the pressure inside an aeroplane. The length of a model aeroplane is 16 cm and the length of the real aeroplane is 60 m. Work out the ratio of the length of the model to the real aeroplane ...

A bag contains 5 red balls, 14 green balls, and 11 yellow balls. John chooses one ball at random from the hat. What is the probability that John does not choose a green ball? A) 11/30 B) 1/6 C) 7/15 D) 8/15

What is the next term in this arithmetic sequence? 11, 8, 5, 2, ...

A website has 13,406. How do you to do it in Word form

Find the missing measure in the triangle. A = 94°, B = 54°, C = x°

I'm having a hard time simplifying this expression: tan (sin-1 x)

A photo of a painting measures 13" x 17" the scale factor is 1/3 what size is the painting

A child bought 4 bags of rubber bands to make into bracelets. If there are 80 rubber bands per bag, how many total rubber bands did he buy?