Which system of linear equations has the ordered pair (4, - 5) as a solution?

a. 2x-5y=-30 and 7x+4y=-19

b. 6x-y=-29 and 8x+3y=-17

c. 3x-2y=22 and 2x+97=-37

d. 5x-6y=49 and x+8y=-27

What is the area, in cm2, of the circle shown above? Round your answer to the nearest tenth.

Last week, Donnell practiced the piano 3 hours longer than Marcus. Together, Marcus and Donnell practiced the piano for 11 hours. For how many hours did each young man practice the piano?

Find the sales tax on a purchase of $18.95 if the tax rate is 6% A $1.85 B $3.25 C $1.14 D $1.92

Solve the equation | x - 2 | = 5x + 6

As a sales person you are paid $50 per week + 2 per sale this week you want your pay to be at least $100 what's the minimum number of sales you can make turn at least $100

The new sandbox was 10 meters wide and had an are of 60 square meters. How long is the sandbox?

Compare - 1/6 to - 2/3,=

10. A store pays $10 for a bracelet, and the markup is 115%. A customer will also pay a 5% sales tax. What will be the total cost of the bracelet to the nearest cent?

A wild tiger can eat up to 55 pounds of meat a day. About how many days would it take a tiger to eat the following prey?

Find the geometric mean of 7 and 12. Brainliest if you can get me the answer step by step!