Which of the following could be used to estimate the quotient?

3,458 ÷ 17

3,000 ÷ 200 = 15
4,000 ÷ 100 = 40
4,000 ÷ 10 = 400
3,000 ÷ 20 = 150

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle