It is the first one. Three times a number means 3x. The sum of 3x and 7 is 3x + 7 because sum means additions. And 3x + 7 is greater than four times the number which is 4x and greater than is this symbol >. So 3x + 7 > 4x
C = pi * d
d = C / pi
d = 6 / 3.14
d = 1.91 units
Theirs no picture, I dong know if you forgot to put it along with it but theirs nothing to answer
2 feet to 3 yards
i divided both sides by 7
One troy ounce of silver is worth, $17.67.
HOPE THIS HELPS YOU! ^_^