The graph of W is concave up for 2≤t≤2.5 . Use the line tangent to the graph of W at t=2 to show that W(2.5)≥6 .

Can you simplify 4/7? 24 points will be awarded!

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.