In this truss bridge, A MNR ~ APQR. QR = 3 feet, PQ = 4 feet and NR = 6 feet. What is MN, the height of this bridge?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

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