The table shows information about the numbers of hours 30 children
spent on their tablets one evening.
Number of hours (h) Frequency
0 << 1
4
1 < < 2
8
2 11
3 7
a) Find the class interval that contains the median.
b) Work out an estimate for the mean number of hours.

Sara has 2 2/3 cup taco meat. she needs 1/6 cup to make one taco. how many tacos can sara make with the taco meat she has?

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.

Ashop has a sale that offers 20% off all prices. on the final day they reduce all the sale prices by 25% linz buys a ratio on the day. work out the overall percentage reduction on the price of the ratio