Joe has eaten 3/5 of a pizza, jane has eaten 1/7 of a pizza.
how many times more pizza has joe eaten more than jane?
compared to jenny, sally is 7/8 as tall and may is 6/7 as tall.
how much taller is sally than may?
so confused, they may be really simple but i've read it too many times and it dosn't make sense anymore haha.

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

Me n o w. i need t h i s. 10 points

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in