Karina uses the system of equations below to compare the monthly utility costs in July and December for electricity, x, and natural gas, y.

750x + 17y = 141.61

300x + 30y = 75.90

If the diameter of circle M is 10 millimeters, what is the length of the radius of circle M?

What's a rational number between 7.7 and 7.9?

How many solutions are there to the system of the equations? 4x-5y=5 -0.08x+0.10y=0.10 A) no solutions B) One solution C) two solution D) an infinite number of solutions B is not correct

Currently, you have $60 and your sister has $135. You decide to save $5 of your allowance each week, while your sister decides to spend her whole allowance plus $10 each week. How long will it be before you have as much money as your sister?

Determine whether each question is biased. Explain your answer. A beverage company conducts a survey in the lobby of a health club to determine people's favorite beverage.

What is the difference in the length between a 1-1/4-inch button and a 3/8-inch button?

Find (t2-4t-4) + (7t2+12t+3). The sum is.

Write 0.000000092 in scientific notation

Diane averages 10 mph riding her bike to work. Averaging 40 mph on the way back home by car, she takes hour less time. How far does she travel to work?

Round 1.51 to the nearest one