im tryiing to furigure out this answer but my trarcher wont help me she wants me to furigure it out and if i dont i have to spend my brake boing work i get out of school at 3 : 50 but i get out of this class at 3: 40 i need help 6/8-3/8 =

Acar traveling at 65 mph leaves 25 foot skid mark what is the ratio of the speed to length of skid mark (feet) in the simplest form

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.