Please I need help with this): Mary is looking at her bank statement. Date Description Debit ($) Credit ($) Balance ($) Opening Balance 372.73 12 Oct CHQ 7743 Hair 43.75 15 Oct DD Telephone 28.67 23 Oct CHQ 1275 12.49 Closing Balance
Estimate the closing balance of Mary's account: $
(Round each figure to the nearest 10 dollars before estimating)

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %