Please help me with these!
1) A super ball is dropped from a height of 100 feet. Each time it bounces, it rebounds half the distance it falls. In feet, how high will the ball travel on its seventh bounce problems!

2) The fifth term of an arithmetic sequence is 9 and the 32nd term is -84. What is the 23rd term?

3) How many terms of the arithmetic sequence 88, 85, 82, . . . appear before the number -17 appears?

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

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

it is true

step-by-step explanation:

all the combinations add up i used   calculator

step-by-step explanation: