What is the solution to this system of linear combination 3a+6b=45 2a-2b=-12 what is the solution to the system?

I have 9 cowry shells if a dozen eggs (12 eggs) cost 2 cowry shells how many dozens can I purchase

Steven is buying new mountain bike on lawaway for $297. If he makes a down payment of $25 and pays $34 each week, how many weeks will it take Steven to pay for the bike?

3m/2 - 4 > 4/5 + 7m/10

What is 19 divided by 217.4?

Angela has the following coins in her pocket: 10p 1p 50p 2p 20p She pulls out two coins at random. a) How many different combinations of pairs of coins are the b) List all of the combinations, write your answers like this: (10p, 1p) You must write

How do you multiply a mixed fraction by a regular fraction

Roger has 4 gallons of juice. He puts the same amount of juice into each of 5 pitchers. How many gallons of juice are in 1 pitcher?

400 students were randomly sampled from a large university, and 289 said they did not get enough sleep. Conduct a hypothesis test to check whether this represents a statistically significant difference from 50%, and use a significance level of 0.01.

Round off the number of seconds in an hour to 1 significant figure number of seconds = 3600

The sum of two numbers is 50. Two times the smaller number exceeds the larger number by 31. Find the numbers.