M∠AOC=108 ∘
m, angle, A, O, C, equals, 108, degrees
\qquad m \angle AOB = 3x + 4^\circm∠AOB=3x+4
∘
m, angle, A, O, B, equals, 3, x, plus, 4, degrees
\qquad m \angle BOC = 8x - 28^\circm∠BOC=8x−28
∘
m, angle, B, O, C, equals, 8, x, minus, 28, degrees
Find m\angle AOBm∠AOBm, angle, A, O, B:

d is correct

step-by-step explanation:

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

50-60=10

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870