Which is the best first step when solving the following system of equations? y= 7x + 3
y= 9x
1. Multiply the first equation by 7
2. Substitute 9x for y in the first equation
3. Multiply the second equation by -3
4. Substitute 7x for y in the second equation

Ten times the square of a non-zero number is eqaul to ninety times the number

Write the expression as a single natural logarithm. 2 in a - 4 in y

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?