Answer:
11
Step-by-step explanation:
a + 4 = ? you cannot solve this
but then they give you a help they tell you that a is equal to 7, so you can basically write 7 instead of a
7+4 = 11
fw=343
frequency is 200
200w = 343
w=343/200
w= 1.715
hope it helps.........
check the picture below. You can pretty much just count the units from the grid.
y=2x+6
Hope I helped, have a nice day :)
