The output of a function is 4 more than 2 times the input. Find the input when the output is -10

Proportions in triangles solve for x

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?