I think of a number, double it, and add eleven. I get twenty five. a) Using the statement above, form an equation.
Use the letter 'x' for the unknown number.
b)
Solve the equation​

5/6

step-by-step explanation:

if i remember correctly with perpendicular stuff you just take away the negative

is there any photos or whatever?

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry