Leah put 21 white marbles. 31 black marbles. and 7 blue marbles in a bag. then her sister added 19 yellow marbles. write a number sentence to show the number of marbles in the bag

Adaycare center charges a $75 enrollment fee plus $100 per week. which of the following represents the cost of sending a child to daycare for 14 weeks?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

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