The temperature of a city changed by -24 degrees celsius over a 6-week period. the temperature changes by the same amount each week

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?