Marissa wants to join a video game club. She will be charged a flat fee to join the club and will also pay for each game she purchases. The total amount she can expect to pay. In dollars, can be estimated using the function f(x)=20x+90, where x is the number of the games purchased. What is the inverse of this function

One shot. if 60% of 10 is 6, then what is 70%? we know it would be seven (since 60% is mathematically 60/100, or 6/10, then 70% is 70/100, or 7/10) but we can check anyway using ratios: 6 : 60% = x : 70%*inverse multiplicationx * 60% = 6 * 70%*divide both sides by 60%x = (6 * 70%) / 60%x = 7and since he has made 6 shots already, he would need just one more to get 7 shots or 70%. if the explanation is too confusing, comment and i will try to