Round 251 to the nearest 100

Someone teach me how to do this my self! Explain it as simple as possible! Which pair contains like fractions? A - 6/7 and 1 5/7 B - 3/2 and 2/3 C - 5/6 and 10/12 D - 3 1/2 and 4 3/4

You need to create a fenced off region of land for cattle to graze. The grazing area must be a total of 500 square feet, surrounded by a fence, and in the shape of a regular polygon.

Johanna has some chicken nuggets and 6 sticks. She puts 3 chicken nuggets on each stick. She has 2 chicken nuggets left. If she puts 4 chicken nuggets on each stick how many chicken nuggets will be left? How many sticks will she need?

Taryn is hosting a party at a restaurant the restaurant is charging her $140 to rent the space and $19 per guest if taryn wants to spend less then $615 which inequality could be used to solve for x the number of guests taryn can invite

What is Albert Einstein credited for? And explain the theory of General Relativity.

Brittany is making trays of fudge. Her recipe calls for 2/3 cup of walnuts for each batch of fudge. How many cups of walnut does she need to make 27 batches of fudge?

State whether each percent of change is a percent increase or a percent decrease. Then find the percent of increase or decrease. Round to the nearest whole percent Original : $100 New : $59

ronen selects 75 random products to test their quality he found that 6 products had defects how many out of 3000 should ronen predict have defects

Is the equation true false or open (12+8) / - 10=-12/6

The population at MS 137 was 1850 students in the year 2009. In two years, by 2011, the population increased by 20percent. By 2013 the population decreased by 15percent. What was the population in 2013?