James has $7.60 in nickels and quarters. He has 4 fewer nickels than quarters. How many of each coin does he have?

which expression represents the approximate length of bc?

step-by-step explanation:

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arc length = radius * x ( in radians)

6 * pi = 18 * x

divide by 18 on each side

6 pi / 18 = x

pi/3 = x

the angle is pi / 3 radians

or   60 degrees

hi,

the area of abcd is 245.

3*24=230

4*94=1039

2*12=24

add all of them up, you get 2450