23 In the figure below, triangles PQR and STR are similar triangles. PQ 1.5 in. P(6x - 230)° PS 0.8 in. ST 0.9 in. S (2x) R Part A: How long, in inches, is side RS? in inches ​

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

Simplify (8x2 − 1 + 2x3) − (7x3 − 3x2 + 1). −5x3 + 11x2 − 2 5x3 − 11x2 + 2 x3 + 2x2 + x3 x3 − 2x2 − x3