-7(-1 - 4d) simplified

7 + 28d

Step-by-step explanation:

-7(-1 - 4d) [ -7 gets multiplied with -1 and-4d when brackets open ]

= -7 × (-1) -7 × (-4d)

= 7 + 28d (Ans)

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2