At an aquarium, researchers are preparing a mixture of salt water. The desired ratio is 90 grams of salt per liter of water,
• 1 ounce = 28,35 grams
• 1 gallon = 3.8 liters
What is the ratio in ounces per gallon?
0.8 ounce per gallon
O 32 ounces per gallon
O 12.10
ces per gallon
0 23.7 ounces per gallon

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

y -5 = (-1/4)(x + 8)

step-by-step explanation:

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2

570, the answer is 570, hope it