A circle has a circumference of 45 cm. What is the BEST estimate of the circle’s diameter? A) 3 cm B) 7.5 cm C) 15 cm D) 18.5 cm

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?

For each polynomial, determine the degree and write the polynomial in descending order. a. –4x^2 – 12 + 11x^4 b. 2x^5 + 14 – 3x^4 + 7x + 3x^3

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?