Which conversions from scientific notation to standard notation are true? check all that a
o 1.71x10° = 0.00171
8.05 x 10% = 805,000
24x104 --24,000
8.25x10--8,250
7.09x10* = 0.709
3.99x 10º = 300,099
8 x 10' = 80,000,000
1.03 x 104 = 0.000103

Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.