3. Use algebra to find the value of x. (5 marks) E=3x-15
D=3x+20
C=2x
F=4x
A=2x-35

B=x

Please help

Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 min and 24.5 min what is the study margin of the error?

2f(x)= x+3 if 4 < x < 8 2x if x 28 2

Abari owns 100 shares of stock a and 45 shares of stock b. for the past month, his stocks have been fluctuating inversely. stock a decreased by m cents per share and stock b increased by n cents per share. which equation can be used to find the total change in value of jabari's shares per month?