Answer:
79 dollars
Step-by-step explanation:
a = 51 + b
Substitute the number of books, 28, he sold into the equation and solve for his earnings.
a = 51 + b
a = 51 + 28
a = 79
The rational number is all of the numbers listed
Answer:
see attached
Step-by-step explanation:
Each spot in the triangle is the sum of the two numbers immediately above. The middle number of row 2 will be 1+1 = 2. The two numbers in row 3 will be 1+2 = 3 and 2+1 = 3. It continues like this. The second number in each row is the row number. Each row is symmetrical about the center.
Volume = 1/3a^2h
v= 1/3 x 8.2^2 x 5.3
v=118.79066666667 in^3