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What is the reflection image of (5,-3) across the line y = -x?

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class