Can 9+10 really equal 21 explain and show your work

Which statement best describes a line in slope-intercept form when the coefficient of the x-term is positive

An egg is thrown off the top of a building. Its height in meters above the ground can be approximated by the polynomial 300 + 2t - 4.9t", where t is the time since it was thrown in seconds. a. How high is the egg above the ground after 5 seconds? b.

I don't even know V - E + F = 2

Compare and contrast subtracting integers and subtracting whole numbers

Solve the equation by completing the square. Round to the nearest hundredth if necessary x^2+3x=25

Which amount of tickets offers the best deal? Ticket Booth: a.) 1 ticket for. 50 cents b.) 12 tickets for $5.00 c.) 25 tickets for $10.00 d.) 50 tickets for $25.00

A rental car service charges $25 to rent a car, plus $2 per mile. If x represents the number of miles driven, then the expression for the total cost to rent the car is 2x + 25. Which table shows the total cost to rent a car?

What is 8,800 - 3,300

A pool service charges $40 per year for chemicals plus $70 per month for pool care. A second pool service's charges are shown in the table below. Number of Months (x) : 2, 3, 6, 8. Total Charge (y) : $190, $255, $450, $580.

What is the area of a rectangle with the length of 91 inches and a width of 45 inches?