Edward has $400 more than Robert. After Edward spends $60 on groceries, he has 3 times more money than Robert. How much money does Robert have? Can someone please explain this? ASAP

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.

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week