Solve the following inequality algebraically (picture provided)

-2 < x/3 + 1 < 5

Subtract 1 from each side:

-2 - 1 < x/3 + 1 - 1 < 5 - 1

-3 < x/3 < 4

Multiply each side by 3:

-3 • 3 < x/3 • 3 < 4 • 3

-9 < x < 12

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you