Which equation has no solution? A
4(x + 3) + 2x = 6 (x + 2)

B
5 + 2 (3 + 2x) = x + 3 (x + 1)

C
5 (x + 3) + x = 4 (x + 3) + 3

D
4 + 6 (2 + x) = 2 (3x + 8)

Rearrange the formula c^2 = a^2 + b^2 for b

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label