155 round to the nearest ten

Ann's watch runs 2 min. per hour too slow. Beth's watch runs 1 minute per hour too fast. For example, if both watches were correct at 12:00 P. M. on a given day, then at 1:00 P. M., Ann's watch would read 12:58 P. M.

Kelly took 25 tests in 135 days. At this rate, how many more days will it take for her to complete another 10 tests? Create a table to justify your reasoning?

Leah babysits during the day for three dollars per hour and at night for five dollars per hour. If she worked five hours in our $19, how many hours did she babysit during the day? How many at night?

What is the domain and range of f (x) = -2[x+1]?

What is 6 times 1/3

A market research group is interested in comparing the mean weight loss for two different popular diets. The researcher chooses two random samples of participants for the two diet programs.

How many 4 1 2 inch strips can be made from 45 inches of shipping tape?

B. has 15 marbles and he got 123 more marbles add those two numbers and see what the number rounds to.

In a entertainment programme, 250 tickets Rs. 400 and 500 tickets of Rs. 100 were sold. If the entertainment tax is 40% on ticket of Rs. 400 and 20% on ticket of Rs. 100, find how much entertainment tax was collected from the programme.

A babysitters earnings e are a function of the number of hours n worked at a rate of 7.25 per hour