Which equation translates to the sentence "the sum of fifty-three and x, minus ten, is y."
a. 53 y ��� 10 = x
b. 53y x = 10
c. 53x ��� y = 10
d. 53 x ��� 10 = y?

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.

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

The area of a circle is equal to 1 dm². find the radius of the circle.