Which equation has the solution x = 5? select each correct answer. 25/x+4=9 x/5+5=6 3x + 1 = 9 18−2x=9 32−4x=12 11 + 6x = 22

Mp model with mathematics explain how the number of text messages dario sent and the cost form an arithmetic sequence.then write an expression to find dario's text messaging bill if he sends n text messages over 250.

Three coins are flipped. what is the probability that there will be at least two tails?

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.