Some people use a rule to see how many hours a child

should sleep at night.

Subtract the child's age in years from 30,

then divide the result by 2.

Tim is 12 years old.

According to the formula, how many hours should he sleep for?

Amelia stars reading at 3: 25 and reads for 15 minute. What type of angle is formed by the hour and minute hands of the clock wen Amelia fineshes reading

7. What is the smallest number of pebbles greater than 10 for which grouping them in heaps of 7 leaves 1 extra and grouping them in heaps of 5 leaves 3 extra? Show your working. What's the answer

A retailer buys 1,756 sweaters. They send out an equal amount to 14 stores. One store sells 50 sweaters. Write an expression to show how many sweaters that the store has now?

Evaluate tan 300° without using a calculator by using ratios in a reference triangle. negative square root of three square root of three divided by three square root of three negative square root of three divided by three

A digital camera cost 235 and the sales tax rate is 5.8 what is the total cost of the camera after tax

How can 40x50 be solved using mental math?

To investigate the relationship between amount of sales y (in thousands of dollars) and the amount x (in hundreds of dollars) spent on advertising, a marketing researcher chooses eight cities of approximately equal populations and spends differing

The total number of human genomic characters is 3.5 billion. Express this quantity numerically without using a decimal

What are the x values of a relation

Kelly has four times as many songs on her music player as Lou Tiffany has six times as many songs on your music player as Lou. altogether they have 682 songs on your music player how many songs does Kelly have