Which equation shows the associative property of addition?
a.-4(7+8)=-4x7(-4)x8
b.-7x(3x4)=(-7x3)x4
c.-8+(8+7)=(-8+8)+7
d.-3+(7+3)=-3+(3+7)

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.

Question 4 of 102 pointsjuliana had $96, which is eight times as much money as al had. how mucmoney did al have? select the correct solution method below, representingals money with x.