Jamie is spinning a five-sided spinner that has different coloured sections. He spins it 100 times and calculates the relative frequency of it landing on red after every 10 spins.

His results are shown in this graph:

If the spinner is fair, how many sides of the spinner are red?

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?