To find the sum and difference of the two rocks, you would do:
Answer:
x = 4
Step-by-step explanation:
11x - 7x = 16
11x - 7x = 4x
16 divided by 4 = 4x
To find what's bigger, you must make it common
8/15=32/50
11/20=33/60
11/20 is bigger.
4/5x=7/5 you have to divide 7/5 by 4/5 which equals to 1.75/5 which is equal to x
SA=6A2 so 6 times 49 squared is 294mmsquared
