Answer:

Step-by-step explanation:

Apply cross product property
⇒
Distribute 5 through the parentheses
⇒
Distribute 6 through the parentheses
⇒
Move 6x to left hand side and change it's sign
⇒
Collect like terms
⇒
Move 30 to right hand side and change it's sign
⇒
Calculate
⇒
Divide both sides of the equation by 9
⇒
Calculate
⇒
Hope I helped!
Best regards!!
Symmetrical functions can be about the x and y axis. Essentially, if we reflect the graph across the y or x axis, we get the same graph. Some other graphs can be reflected across both the x and y axis at the same time and be symmetrical. These can be classified as odd and even functions. You can test this by replacing x and y with -x and -y and simplify the equation. If the results comes out to be the same as the original, it is symmetrical across the origin.
Best of Luck!
A. Solution set is in the attachment (dark green shading in the middle)
B. Yes, 2(5) + 3(1) ≤ 15; 13 is less than or equal to 15
5 + 1 > 3, 6 is greater than 3
C. (4, 2) means that he buys 4 sandwiches and 2 hot lunches
10^5=100,000
100,000*3.6
360,000
360,000/2400
I believe it’s 150 bolts per minute