When would be only four different equations for a set of math mountain numbers

Pam asked a bank teller to cash a check for $130. The teller gave Pam a total of 9 bills. She received $10 bills and $20 bills. How many of each type of bill did Pamela receive? Write a system of equations to solve the problem.

If f (x) = - 2x + 8 and g (x) = x + 9, which statement is true? Click on the correct answer. -6 is not in the domain of fºg. -6 is in the domain of fºg.

2x - y + 3z = - 9 x + 3y - z = 10 3x + y - z = 8 find the ordered triple

Jake thinks that a rhombus is not always a parallelogram is Jake correct

At 3:00a. m, the temperature is - 5°F. Between 3:00a. m. and 6:00 a. m., the temperature drops by 12°F. Between 6:00a. m. and 9:00a. m., the temperature rises by 4°F. What is the temperature at 9:00a. m.?

Solve log (6x + 10) = 3. Round to the nearest thousandth if necessary.

Mary went to the store and bought cheese for $5.39, milk for $2.78, and bread for $3.55. What was Mary's total purchase cost rounded to the nearest dollar? Explain how you got your answer.

Emily sold 78 boxes of cookies for a fundraiser. If she sold 40% of the total number of boxes sold for the fundraiser, how many total boxes of cookies were sold for the fundraiser?

How bad is the heavy traffic? you could walk 15 miles in the same time it takes to travel 30 miles by car. if the cars rate is 4 miles per hour faster than your walking rate, find the average rate of each

a contractor used about 4 1/5 pounds of nails per day. How man pounds of nails did she use in 5 days?