I do not understand if anyone could help in steps or anything thank you. Solve for A -2(a + 7) = -9

Can u guys do this ratio question. this is extremely urgent a tap is leaking water at a rage of 1l every 8 hours. how long will it take for the tap to leak a total of 300ml?

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?