The number of yeast cells in a ball of bread dough doubles every four hours. The number of billions of yeast cells in the dough, y, can be modeled by the equation below, where h is the number of hours since the dough was formed.
y = 5(2)0.251
Which expression is equal to the number of hours it takes for there to be 6 billion yeast cells in the dough?

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

50 points and will mark brainlest if you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking: