PLS HELP ASAPP ILL GIVE BRAINLIEST IF CORRECT evaluate arccsc2

a) {pi/6, 5pi/6}

b) {pi/6 plus or minus 2pi n, 5pi/6 plus or minus 2pi n}

c) pi/3

d) {pi/3 plus or minus 2pi n, 5pi/3 plus or minus 2pi n}

Janet is mixing a 15% glucose solution with a 35% glucose solution. this mixture produces 35 liters of a 19% glucose solution. how many liters of the 15% solution is januet using in the mixture? a. 25 liters c. 28 liters b. 7 liters d. 10 liters

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.

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.