Use the formula Circumference = 2 X X radius, where r is approximately 3.14, to answer the question,
5.0 inches
What is the approximate circumference of the circle?
O
A 7.9 inches
B. 15.7 inches
C. 31.4 inches
D. 62.8 inches

step-by-step explanation:

there are 36 inches in a yard

25 : 36 = 0.69 yards (you can round to 0.70)

answer: 1+1

step-by-step explanation: 1+1 is at least 2

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

3.07*10^-4

move the decimal 4 places to the left

.000307