Please answer my question. Its an algebra riddle Iam a number Tell my identity! Take me seven times over And add a fifty! To reach a triple century You still need forty!

The number is 30.

Step-by-step explanation:

The number is x.

"Take me seven times over" 7x

"And add a fifty" 7x + 50

"To reach a triple century You still need forty!" 7x + 50 + 40 = 300

7x + 90 = 300

7x = 210

x = 30

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.