A jewelry store is having a 50% off salefor all necklaces. During the sales, what is the sale priceof a necklace, that regularlycost$49? asap with steps

Geometry paper. i don't know how to do the rest. questions 5. 8. 9. and 10.

Which of the following functions corresponds to the above sinusoid? a. 10 cos πx - 5 b. -5 sin x - 5 c. -10 cos πx/2 - 0.5 d. 10 sin πx - 5

The table below shows the angle measurements for triangle abc and triangle xyz. if triangle abc is similar to triangle xyz, what does angle z equal, in degrees?