Sixteen blocks are needed to build a four-step double staircase like the one on the right. How many blocks will be needed to build a
double staircase of similar shape with 50 steps?
Snacks:

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3