A baseball is thrown upward and out. It follows the equations: x = 9.8t
y = -16t^2 + 128t, where t is measured in feet/sec

a. how high is the ball after 1 second?
b. when does the ball hit the ground?
c. when is the ball at its highest point? what is the highest point of the ball?

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out

The box plots show the distributions of the numbers of words per line in an essay printed in two different fonts.which measure of center would be best to compare the data sets? the median is the best measure because both distributions are left-skewed.the mean is the best measure because both distributions are left-skewed.the median is the best measure because both distributions are symmetric.the mean is the best measure because both distributions are symmetric