During an archaeological dig, the team starts at an elevation of -5 1/2 ft. At a rate of 2 3/4 ft per hour, the team digs deeper into the surfaces for 3 1/2 hours. For the next 4 1/2 hours, the team digs at a rate of 1 3/12 ft per hour.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

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step-by-step explanation:

fd

step-by-step explanation:

well

44-3-3-3=35

35+4+4+4+4=51

so the ansewr would be 51 degreesat 7: 00