The cascade tunnel in washington is 41,152 ft long. the moffat tunnel in colorado is 32,798 ft long. how much longer is the cascade tunnel?

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

Write the percent as a fraction or mixed number in simplest form. 0.8%

Which of the following represents a function? 50 !