The students in your class are going on a field trip. The ratio of teachers to students must be 1 to 7. Which graph shows the number of teachers needed for 28 students?

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

X+y=-4 x-y=2 use elimination with adding and subtraction

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?