Answer:
mkmkmkm
Step-by-step explanation:
Answer:
Answer is 21
Step-by-step explanation:
if you multiply 5 x 4=20 and + 1 is 21
Answer:
T = 3.5 hours
Step-by-step explanation:
this is a rate problem.
an experienced surveyor takes 7 hours to survey a roadbed
an apprentice surveyor takes 9 hours to survey a roadbed
the rate of the experienced surveyor =
the rate of the apprentice surveyor = 
if the two work together , 
T = 
T = 3.5 hours