How do you do this problem?

Solve by factoring or finding square roots.

x^2-1=0

The ratio of blue marbles to yellow marbles in a jar is 7 to 9. If there are 28 blue marbles in the jar, how many yellow marbles are there?

Pablo is going for a walk. He takes 5 hours to walk 12.5 miles. What is his speed?

8 4/9 + 5 3/8 = Write answer as a mixed number with the fractional part in lowest terms.

On a coordinate plane, lockers is 5 units to the left and 3.5 units up. Water fountain is 2.5 units to the left and 3 units up. Bleachers is 1.5 units to the right and 2 units up. Exit is 3 units to the left and 2.5 units down. Court is 2.

Which of the following is not a polynomial? a 11p-7q b 8xy^4-5x^3y c 2-x d-4/y

Jeffrey earns a gross semimonthly salary of $2181.80. What is the total of his Social Security deductions for the year? $759.27 $3246.52 $8445.68 $36,112.55

Which ordered pair is a solution of the equation y=7x-2 (A) only (3,15) (B) only (-1,-10) (C) both (3,15) and (-1,-10) (D) neither

If h = 12 and g = 4, which of the following has a value of 3?

In word form 24 minus 6 plus 3

How do i solve 8x + 15=63?