Answer:
21 = n
Step-by-step explanation:

-5 - 5
________________
-⅓<em>n</em> = -7
____ __
-⅓ -⅓
21 = <em>n</em>
* Dividing by a fraction is the exact same as multiplying by its <em>multiplicative</em><em> </em><em>inverse</em>:

I am joyous to assist you anytime.
Answer:
a. x = 1.2, b. A = 32.1°
Step-by-step explanation:
1.41²-.75²=x²
a. x = 1.2
sin A = 0.75/1.41
b. A = 32.1°
Answer: 135
Step-by-step explanation:
Area of triangle formula : 
Substitute known values into formula: 
Reduce fraction:
= 135
For 22: write out the formulas with and = in the middle
for 24:sorry, i dont understand it either. but i hope #22 helped,tho