Answer:
let's see what to do buddy...
Step-by-step explanation:

Multiply the sides of the equation by 799

So A jar of the chemical contains 141 grams of <em><u>zinc</u></em>.
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
Answer:
2500
Step-by-step explanation:
there you go haha
Tan(40)= x/20 => x= tan(40).20= 16,78
Ok done. Thank to me:>
Answer:
12
Step-by-step explanation:
a² + b² = c²
a² + 9² = 15²
a² + 81 = 225
a² = 225 - 81
a² = 144

a = 12