What is 66 + 1.8+2.2 using mental math

A baby elephant eats 5/6 ton of food each day. His mother eats 2 3/4 tons of food. How many tons of food do the two of them eat together each day?

What is 1256.78x56 im very confused

About 16/20 of the tomato is water. what percent of a tomato is water?

7>-4; subtract 7 from both sides

The circumference of a circle is given by the formula C=2πr. Find r if the circumference is 396 meters and π is 22/7.

Which properties justify the steps taken to solve the system? {3x-2y=10 4x-3y=14

How do you interpret slope and y - intercept from a table?

If p∨q is true, then what must be true about the truth values of p and q? Where p and q are statements, "p and q" is false if p is false.

8*5+8*1-2*6+6-2 add parentheses to get the value of 22

Johnny opened a savings account 3 years ago. The account earns 7% interest, compounded continuously. If the current balance is $200.00, how much did he deposit initially? Round your answer to the nearest cent.