How long are the sides of a rectangle which has a perimeter of 70 units and an area of 276 square units?

recent brain research has shown some surprising benefits as a result of formal musical training. learning to play a musical instrument appears to develop parts of the brain that can even influence academic results. the studies indicate that the earlier a child begins training, the more benefits there are. one such study showed that children who began musical studies before the age of seven had a more developed brain in the region where language production and auditory processing take place. scientists believe there is mounting evidence to show that early musical training can improve brain function.

explanation:

a. fill-in-the-blank form

when in the second paragraph fourth sentence it says "if youre" it should be "if you're"

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