Todd simplifies the radius of pond a this way: 5√(164 ) meters step 1: 5(√100+√64) step 2: 5(10+8) step 3: 5(18) step 4: 90 one of todd’s steps is incorrect. identify which step is incorrect; and rewrite the step so it is correct.

Can't gugys answer the ratio question. this is urgent the plans of a building is drawn toward scale of 1: 1000. kfc the foyer on the plans measures 62mm by 54mm, how large is the foyer in real life?

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.