30 times 30 plus 45 minus 456 is 489
First do parenthesis the multiplication then add
9+15=24*3=72+2=74 :)hope this helps
Answer:
1/2 is the fractional part of cookie which was eaten by Dan.
Step-by-step explanation:
Dan has 2 1/2 cookies and ate 1/2, so we can just subtract the 2 1/2-1/2
which cancels out the 1/2, which is the fractional part.
He has 2 cookies left.
Answer: 
, 
, 
.
Step-by-step explanation:
The magnitude is an absolute value by definition. Hence, each element has the respective value:
Answer: 31.5 square units
Explanation:
The area of the rectangle is length*width = 7*3 = 21 square units
The area of the triangle is 0.5*base*height = 0.5*7*3 = 10.5 square units
The combined area is 21+10.5 = 31.5 square units
