What is the circumference of this circle with a diameter of 15cm? use π ≈ 3.14. round your answer to the nearest tenth of a centimeter.
a. 94.2 cm
b. 47.1 cm
c. 23.6 cm
d. 176.6 cm

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]