If the area of a circle is represented by A=21π, what is the radius of the circle? round your answer to the nearest tenth

A coin is tossed 50 times, and it lands on heads 28 times. find the experimental probability and the theoretical probability of the coin landing on heads. then, compare the experimental and theoretical probabilities.

What is the price per kg of brand X coffee if 5 kg were mixed with 2 kg of brand Y coffee which costs $10/kg to make 7 kg of Krystal's special coffee blend which costs $20/kg?

12mn square - 18m square n square

What's is a referent for a km

Which is greater - 6 or 3

When Rosa tripped and fell into a muddy puddle at lunch (she was so embarrassed!), she knew exactly what would happen: within ten minutes, the two girls who saw her fall would each tell four people what they had seen.

What is the Vertex y=2x^2+6

What is 128 divided by 8

A collector's hockey card is purchased in 1990 for $5. The value increases by 6% every year.

At a local University 54.3% of incoming first-year students have computers. If 3 students are selected at random, find the following probability. A) At least one has a computer B) None have computers