Ain a box there are 35 marbles. one fifth of them are red. how many red marbles are there?

Which expression is equivalent to 2x^2+7x+4?

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?