Round 709 to the nearest 10

Jacob used 1/7 of a liter of water to fill 1/9 of the fish aquarium. How many liters of water are needed to fill the aquarium?

Sue answered 80% of 150 test questions correctly. how many questions did she not answer correctly?

Solve the following system via elimination 3x - y = 28 3x+y=14

Write 0.5 in fraction

B (2x-1) - 3b (x) if b (m) = 2m^2+m-1

Sixteen less than seven times a number is equal to that number added by two

You start with $1000 and every day you will receive the previous day's total plus an additional $1000 a day for 30 days. How much money will you have after 30 days?

A survey determined that 7/18 of the seventh grade students at Mills Middle School preferred round chocolate candies to hard candy. When Jennifer duplicated the survey, 1/9 of the students changed their preference from chocolate candy to hard candy.

Which situation is linear? A. A sample of bacteria is doubting every day B. The number of cars each hour on a road for a week C. The cost of a movie ticket increases five percent each year D.

Kari is flying a kite. She releases 50 feet of string. What is the approximate difference in the height of the kite when the string makes a 25o angle with the ground and when the string makes a 45o angle with the ground? Round to the nearest tenth.