Last year there was 450 students in a soccer league. This year, participation increased by 64%. How many more children joined the league this year?

A way to write numbers by showing the value of each digit

you invest d dollars in a bank account that earns 5% compounded continuously. how long will it take your money to double?

A certain colony of bacteria triples in length every 10 minutes. It's length is now 1 millimeter. how long will it be in 40 minutes?

There is a number, which has five digits 5abc9. If this number is the square of an integer, where a, b, c each represent a missing digit and all five digits are different, then find this number.

A building has a height of 100ft and a length of 100ft. An architect wants to add to the building by doubling the length of the building. What is the length of the building after the addition?

Work out the circumference of the circle with radius 2.5 cm

Lee buys 5 DVD's for $60. At this rate, how much woukd he bay for 3 DVDs? A:$10. B $30 C:36. D:$58

Show that - 1.808 is a rational number.

Explain in words how to change a fraction to a percent

There are 3 strawberry ice creams, 4 chocolate ice creams, and 7 vanilla ice creams on a tray. barbara selects 2 ice creams at random without replacement. what is the probability that she selects 2 chocolate ice creams?