Solve the below problems being sure to provide the correct significant figures.
1) 1000 ÷ 4.886 =
2) 240 ÷ 12.3 =
3) 80 x 4.6 =
4) 4.527 x 30 =
5) 86 x 63.855 x 8000 =
6) 700 x 91.186 =
7) 7.1 x 348 =
8) 50 ÷ 29.1 =
9) 98.773 x 24.891 x 409 =
10) 0.065 x 3 x 3007 =

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¯¯¯¯¯¯¯¯)?

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?