6. (5y+2)+14x=5y+(2+14x) (1point) A.associative property of addition B.associative property of multiplication C.commutative property of addition D.commutative property of multiplication 7. (m*n)*p=m*(n*p) (1 point) A. commutative property of addition B.commutative property of multiplication C.associative property of addition D. associative property of multiplication
2d-5=17
2d=17+5
2d=22
— —
2 2
d=11
60 miles per hour.
So there are 3600 seconds in 1 hour.
60/3600