Find the missing numbers is 7 and 9 and 10 right if not what are the answers for 7 and 9 and 8 and 10 me ?

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.

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false