Answer:
27
Step-by-step explanation:
90 x 0.3
Answer:
Step-by-step explanation:
we have
Applying the distributive property
taking the outer term and multiplying it by each term inside the parenthesis
so
Carbon is Carbon so it's just one atom.
Air is mostly O2, N2, H2O and ....
Salt is NaCl and not one atom ;)
All you have to do is subtract 18 from 45 and divide that sum by 3, because 3 bags of birdseed were bought. If she spent $45, then 18 dollars were spent on a birdfeeder and three bags of birdseed costs $27 all together. 27 divided by 3 is 9, so each bag of birdseed costed $9. :)