The probability of an event occurring is 21% what is the probability of the event not occurring

How do you find a percentage of a number which does go into 100? For example: 86%

A boat is on a bearing of 340 degrees from Lighthouse A and 245 degrees from Lighthouse B. Work out the bearing.

How can I change Celsius to Fahrenheit

a line has the equation 4y=3x-8 which is the equation of a line parallel to this line that has a y intercpt of 4?

What are the excluded values of x for x+4 / - 3^2+12x+36

Rosita and Garth are saving up for a vacation, and begin with a certain amount saved each. If Rosita works 5 hours, she will have $128. If she works 7 hours, she will have $164. If Garth works 3 hours, he will have $124.

Which situation could not represent a proportional relationship

1/6 Solve the following equation: 2 (w - 1) = 10

B) Work out (6 * 10%) = (3 x 10) Give your answer in standard form.

X=65-30 Solve for x A, B, C