Solve each system. Explain why do you choose the method you used 1. 4x+5y=3; 3x-y=8
2. 2x+7=-20; y=3x+7
3. 5x+2y=17; x-2y=8

The highest common factor of 132 and 220

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean