This is a hard math problem.

This is a hard math problem.

This is a hard math problem.

The lengths of three sides of a regular hexagon are (12x+9y) cm, (7x+6y+3) cm and (4x+5y+2) cm. Find, (a) the values of x and y (b) the perimeter of the figure

The answer is ???

The answer is ???

How many gallons?

How many ounces?

? mph and ? mph

? pounds at $1.16 and ? pounds at 86 cent

The answer is ? tablespoons!

Please help me!

Maria is ? years old Robert is ? years old

Its hard!

It looks easy, but It is hard!

Here is the whole problem: The conjugate of the sum of two complex numbers is equal to the sum of the conjugates of the two numbers. Using a+bi and c+di to represent two complex...

There are 420 students in kindergarten through third grade. If 1/4 of the students are in first grade, 20% are in second grade, and 115 students in third grade, how many students are in kindergarten...

? grams of 12% solution of boric acid and ? grams of 20% solution of boric acid.

? gallons of 80% acid and ? gallons of 50% acid.

This answer is in percents(%).

Please help me

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