When solving for the sides of a right triangle, when will you use trigonometric function versus pythagorean theorem

Tanya has $42 to spend at the dolphin island store. tshirts sell for $7 each and a pair of sunglases sells for $6.tanya buys 3 tshirts. how many pairs of sunglases can she buys with the amount of money she has left

Write two subtraction equations that are equivalent to 5 + 12 = 17.

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12