Use what you know about the area and circumference of circles to answer the questions below. Leave answers in terms of P. i "If the radius c a circle is 15 units, what is its circumference? What is its area?"

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post