What are the solutions of the equation x^2-1=15

Out of 30 people, 11 said "yes," and 19 said "no." What is the best estimate for the total number of homes that would say yes in a 200-person neighborhood? A. 30 B. 67 C. 73 D. 97

Find the mode. 19, 1, 17, 19, 3, 20, 5, 2

Andros has an oil fired heating system. In a 30-day period he used a full tank of oil at a constant rate per day. At a different time of the year the amount of oil Andros uses per day is 1 3 of the rate used in the 30-day period.

A wheelchair access ramp has an angle of elevation of 31 degrees. If the ramp reaches to the top of a 42 inch high porch, how long is the ramp? (also that's a pretty tall porch!)

Which steps should be used to compare the fractions StartFraction 2 Over 9 EndFraction and StartFraction 5 Over 6 EndFraction? Find a common numerator. Add the numerators and denominators to determine which sum is larger.

Round 9 over 16 to 0 1/2 or 1

Diego measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm Which of these is closest to the percent error for Diego's measurement? a. 4.3% b. 4.5% c. 95.7% d. 104.5%

You started with $25 in your pocket. You were lucky and found two dimes on the ground. You then bought a sandwich for $3.99 and an iced tea for $1.48. How much money do you have left?

Convert 0.265 to a percent round to the nearest tenth

Consider the graph of the linear function h (x) = - 2/3x + 5. Which could you change to move the graph down 3 units? the value of b to - 3 the value of m to - 3 the value of b to 2 the value of m to 2