?.4 + 7 = ? +16 I’m thinking of a number.
When this number is multiplied by 4 and added to 7
It equals the sum of that same 16.
What is the number?

What is the standard form of -5x^2+2x^4-11+x^3+3x

Find the value of x for which abcd must be a parallelogram -9-6x x-30

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?