He length of an object is measured as 64.7 centimeters. What is this measurement in scientific notation? A.
0.647 × 102 centimeters
B.
6.47 × 101 centimeters
C.
647 × 101 centimeters
D.
6,470 × 102 centimeters

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.

If 25% of y is 30, what is 60% of y?

If (17, 4) is an ordered pair of the inverse of f(x), which of the following is an ordered pair of the function f(x)? a. (17,4) b. (4.17) c. (4,0) d. 0,17)