Last week, Lee earned some money babysitting. he spent 1/4 of his earnings on dinner. he spent another 1/5 of his earnings on a movie. he saved the remaining 19.80. how much did he earn from babysitting last week? answer choices:
a) 20.25
b)29.70
c)30.69
d)36.00
e) 44.00

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?