Simplify the expression: $4x^2+6x-8+7x$   

•  $4x^2+13x-8$  

•  $4x^2-x-8$  

•  $4x^2+9x$  

•  $4x^2+17x-8$  

• None of the above

Simplify the expression: $12v+6\left(v+4\right)$  

•  $12v+6v+24$  

•  $18v+10$  

•  $18v+24$  

•  $12v+6v^2+24$  

• None of the above

Simplify the expression: $4y^2+5y^3-2y^2+5$   

•  $5y^3+2y^2-5$  

•  $4y^2+3y^3+5$  

•  $5v^3+2v^2+5$  

• None of the above

Identify the constant terms out of this expression: $6-8c-14+c$   

• 8

• 6

• -8

• -14

• 14

Identify the coefficient out of this expression:  $6-8c-14+c$  

• 6

• 8c

• 14

• 1

• 5c

Identify the like terms out of this expression: $6-8c-14+c$   

• 6 and -14

• -8c and c

• 6 and 14

• -8c and 16

• None of the above

Hippo has started a workout shop. He decides that the customers have to pay 20 dollars a month to use the gym and has to pay an extra 40 dollars on the first day. Let x be the the amount of months you are going to use the gym. Find the cost of the gym if you decide to use the gym for 6 months. Also write out the equation.