The Changes in Tide in the Bay of Fundy Were $1.5 \mathrm{~m}$

Short Answer

The changes in tide in the Bay of Fundy were measured at Parrsboro, Nova Scotia. At 6 a.m., the water level was $1.5 \mathrm{~m}$ . By $9 \mathrm{a} . \mathrm{m}$ . it had risen $6.3 \mathrm{~m}$ , and by noon it had risen another $4.6 \mathrm{~m}$ . The last measurement at 4 p.m. was $8.0 \mathrm{~m}$ lower than the noon level. What was the water level at 4 p.m.?