7. Evaluate the following:
a. 41-81
b. 21-3| + 4(7)
c. 81-21 - 6
d. 51-41 + 21-61

.24

step-by-step explanation:

the probability is   .24

the first player had the highest probability of getting a silver marble

the game could be made fair by adding back the marble that was drawn after each draw

b, 20 yards

step-by-step explanation:

if i knew id you bro,, my bad

the forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?