Which of the following equations cannot be solved using real numbers?

X-4 = 0

x+4 = 0

x²-4=0

x²+4=0

2/4 is what pieces of a whole

How do I find the value of X for the equation (3x+1) + (4x-5) = 8x-9

If two bags of apples weight 8 pounds how many pounds do 5 bags weigh

The area of a rectangular classroom is 420 square feet. If the length and width of the classroom are multiplied by 3, what will be the area of the new classroom? A:1640 ft B:1720 ft C:2840 ft D:3780 ft

What is - 15+b=-9? This is a one step equation.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.