What's the meaning of algebraic expression?

Evan's dog weighs 7 times as much as Oxana's dog. Together, the dogs weigh 72 pounds. How much does Evan's dog weigh?

Six fewer than a number is 27

The remaining flour is stored in bins that store 3 kg each. how many bins will be needed to store the flour. Explain

The length of a rectangle is 5 cm more than its width and the area is 50 cm squared. Find the length, width and the perimeter

Factor 10a3b - 5a2b2 - 15ab

What is the expression in factored form? 16x^2 - 25

When I multiply by 4, add 12, divide by 2, then square root, I get 10. What number did I start with?

Arrange these numbers from least to greatest 5/6, 7/9, 3/5. A. 5/6, 3/5, 7/9. B. 5/6, 7/9, 3/5. C. 3/5, 7/9, 5/6. D. 3/5, 5/6, 7/9

You work at a factory that bottles honey. The factory bottles 5,250 gallons of honey into cup size bottles on average a day. How many cups of honey does the factory bottle a day

For the functions f (x) = 2x - 3 and g (x) = 5x + 5, find (f • g) (x).