HELP WITH GEOMETRY QUESTION

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true