Help me.

Meredith runs 90 meters in 1 min

Step-by-step explanation:

The information says that she runs at a rate of 90 meters per minute.

90 meters in 1 min

180 meters in 2 min

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x