<span>1.) a. 20 ÷ 4 ? means ? × 4 = 20 </span>→ replace ? with 5.<span>
b. 2,725 ÷ 5 ? means ? × 5 = 2,725 </span>→ replace ? with 545<span>
c. ? ÷ 5 = 0 </span>→ replace ? with 0.
2) 1,475 / 25 = 59
They used 59 boxes for this year.
3) 18 per haircut ; 70 per perm
4,608 = 18h + 70(36)
4,608 - 2,520 = 18h
2,088 = 18h
2,088/18 = h
116 = h
Grace did 116 haircuts.
4) 575 + 13(118) = 575 + 1,534 = 2,109 total expense.
5) 2,240 miles / 320 miles = 7 tanks of gas used.
7 tanks * 39 = 273 cost of the gas used.
Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged).
35 protons 35 electrons and 45 nutrons
A I think but idrk I just guess sorry if you get it wrong cause of me just be careful I could be wrong
Two forces are to be considered upon answering this item. The first one would have to be the forces occurring between the atoms of a single H2S molecule. This type of forces is the dipole-dipole interaction forces. Also, the intermolecular forces that would occur for the interaction of H2S molecule to a neighboring H2S molecule is also Dipole-dipole intermolecular forces.
