Cynthia ran 4 laps in 40 minutes. What is the rate of number of laps to minutes?

(A). 1/10
(B). 4/36
(C). 10/40
(D). 36/1

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

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.

The trigonometric ratios sine and secant are reciprocals of each other