This input-output table shows some vaules that satisfy the equation y = 4x + 21

How do you find the area of a triangle

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!