Answer:
15
Step-by-step explanation:
3x+15=60
3x=45
x=15
Answer:
Bug splatter needed: 4 cups
Sardines needed: 1 and 2/4 cups or 1 and 1/2 cups
Dirty dish water needed: 2 cups
Step-by-step explanation:
1 and 1/3 cups x 3 = 4 cups
2/4 cups x 3 = 1 and 2/4 or 1 and 1/2 cups
2/3 cups x 3 = 2 cups

Actually Welcome to the Concept of the inequalities.
===> -7 + 45m - 35 < 9m - 11
===> 45m - 42 < 9m - 11
===> 45m - 9m < -11 + 42
==> 36m < 31
==> m < 31/36
hence the value of m < 31/36
All you do is add them all together...
20 + 11.4 + 11.4 + 4.5 + 4.5 + 0.45 + 0.45 + 0.45 + 0.45 = 53.6Kg
(note that 0.45 is 450g in Kg, When adding things such as weight or length you want to make sure that they are all in the same unit)
V=pi•r^2•h. So, 3.14•16•10=502.4