21. To find a baseball pitcher's earned run average (ERA), you can use the formula Ei=9r, in which E represents ERA, i represent
s the number of innings pitched, and r represents the number of eamed runs allowed. Please answer the following and separate your answers by a comma (EX: 10, 11) Solve the equation for E. What is the pitcher's ERA if he allows 5 earned runs in 18 innings pitched?
To
solve this problem you simple have to think which of the following
option would carry your shape into itself. Or in simpler words which
one would make it go 360 degrees around. The correct set of
reflections and rotations would be:
<span>Reflect
over the y-axis, reflect over the x-axis, rotate 180°.