Abaseball is thrown with a vertical velocity of 50 ft/s from an initial height of 6 ft. the height h in feet of the baseball can be modeled by h(t) = -16t2 + 50t + 6, where t is the time in seconds since the ball was thrown. it takes the ball approximately seconds to reach its maximum height. (round to the nearest tenth of a second and enter only the number.)

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

Tell whether the two rates form a proportion

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250