simplify 5/11 * -7/8 + 3/4 * 5/11 - 9/11 first one to answer gets brainliest and 5 star rating and a thanks

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.