it is known that a, b ,n are positive integers and that the first three terms in the binominal expansion of (a+b)^n are 729, 2916 and 4860. find the value of b​

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

The function models the number of accidents per 50 million miles driven as a function

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?