Monica paid sales tax of $1.50 when she bought a new bi come it if the sales tax free is 5% how much did the store charge for the helmet before tax

Aregular hexagon has sides of 2 feet. what is the area of the hexagon? 12 ft2 12 ft2 24 ft2 6 ft2

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?