Which of the following shows an equivalent expression to [(5 • 3) - 12) if only the associative property was used to transform the expression? a [5 • (3 • 12)] b [(5-12) • 3] c [(3•5) • 12] d (12 • (3 • 5))

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

What is the ratio of the length of an object in yards to the length of the same object in miles?

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