In right triangle abc, and are complementary angles and sin a = . what is cos b?

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is