Find the value of ? that makes the equation true: x^?x^4=x^{10}

Write each expression in exponential form and find its value. 3 x 3 x 3

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.

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did