Question

HELP I GIVE 70 points!! TOTAL!!! and big brain!! SEE ATTACHMENT

Answer 1

Answer:The answer is in the attached file

Explanation:

Answer 2

No solution:
`4(0.6x-0.9)=2.4x-2.8`

One solution:
`0.5(3x-8)=0.8x+0.9`

Many solutions:
`4.2x-3.8=7(0.6x-0.7)+1.1`

Explanation:

`4.2x-3.8=7(0.6x-0.7)+1.1`

`\implies 4.2x-3.8=4.2x-3.8`

Therefore, true for all
`x` so many solutions

`4(0.6x-0.9)=2.4x-2.8`

`\implies 2.4x-3.6=2.4x-2.8`

`\implies -3.6=-2.8`

Therefore, no solution

`0.5(3x-8)=0.8x+0.9`

`\implies 1.5x-4=0.8x+0.9`

`\implies 0.7x=4.9`

`\implies x=7`

Therefore, one solution