find each sum, product, or quotient and write your answer as a fraction in simplest form. - 2/21 ÷ ( - 2/15 )​

What are the critical values that correspond to a 95% confidence level and a sample size of 93? a. 65.647, 118.136 b. 59.196, 128.299 c. 57.143, 106.629 d. 69.196, 113.145

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?