Start at 0 and go back 7 yards for their loss. You are not at -7 on the number line.
Move 12 to the right because of the gain. It takes 7 or those 12 just to get back to zero and you can still move 5 more to the right. You will wind up with a gain of 5 yards. (+5)
3/8 = 0,375
0,375 * 100% = 37,5 %
The values of the number is 43
x+21=64
subtract 21 on each side
x = 43
Sin is opposite over hypotenuse so the answer would be sqrt3\2
So first let’s combine like terms and add 4/9x and 1/5x together to get 29/45x =58. Next, multiply 58 by 45/29 to isolate x, so x=90
