1. 5x3 will be 15 (5+5+5) and 5x12 will be 60 (5+5+5+5+5+5+5+5+5+5+5 +5) so 15+60=75
2. 4+8 divided by 2. First you do 8 divided by two because it pemdas, parenthesis, exponents, multiplication, division, addition, and subtraction. Now you’ll have 4+4=8
3. 45 divided by 5x3+2
First you divide 45 and 5 since it’s comes first in the equation, even though multiplication is before division, you divide, since it’s first, so now your left with 9x3+2
9x3= 27
27+2= 29