Bridget has a coupon for 30% off the regular price of one item at a bicycle store. she buys a bicycle that has a regular price of $139.99. the tax rate is %6. what is the price of the bicycle after the coupon is used and tax is applied

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?

Aprism and two nets are shown below: image of a right triangular prism and 2 nets. the triangle bases have base 4, height 3, and diagonal side 5. the length of the prism from the bases is 9.4. net a has 3 rectangles in a row. the middle one has sides ac and cd. this middle one has triangle abc on top and identical triangle below. net b is the same except that the triangle base abc is on top of the last rectangle which has sides ac and cd. units are in inches. part a: which is the correct net for the prism? explain your answer. (2 points) part b: write the measurements of sides ab, bc, and cd of the correct net. (4 points) part c: what is the surface area of the prism? show your work. (4 points)