Calculate the weighted average of the numbers: 3, 7, 2, 4 with weights respectively: 1.3; 1.7; 1.4; 0.6

Find the area of the regular hexagon if a side is 20 cm.

If angle b measures 25°, what is the approximate perimeter of the triangle below? 10.3 units 11.8 units 22.1 units 25.2 units

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?