Least common denominator of 3/10 and 2/5

Approximate the real zeros to the nearest tenth: -x^3 + x + 4 -1.6,1.6 -2,1 -2.6,2.6 -1.6,2.6

A limited-edition poster increases in value each year with an initial value of $18. After 1 year and an increase of 15% per year, the poster is worth $20.70.

A weighted coin has a 55.5% probability of heads. if you flip three coins, what is the probability of at least 1 tails?

Kelly had of a tank of gas at the beginning of the week. At the end of the week, Kelly had of a tank left. a) Did Kelly use more or less than 2 of a tank? Explain. b) How much more or less than 2 of a tank did Kelly use?

Find the value of the polygon. the polygon has 6 interior angles 2 of them are y and 4 of them are (2Y-20)

Is the graph of y=3/2x-4 paralel to the graph of y=-3/2x-4

What is the length of a ramp whose rise is 10 feet and slope is 5/12

Paula was standing on top of a cliff 35 feet above sea level. She watched her friend Juan jump from the cliff to a depht of 12 feet into the water. How far apart are the two friends?

3x to the x power plus 1 equals 9

One angle in a triangle measures twice the smallest angle whereas the largest angle is six times the small angle. Find the measures of all three angles.