Amber has $1.50 in pennies and dimes. If there are five times as many pennies
as dimes, how many pennies and dimes
does Amber have?

50 pennies, 10 dimes

Step-by-step explanation:

0.01p+0.01d=1.50

p=5d

(0.01)5d+0.10d-1.50

0.05d+0.10d-1.50

0.15d=1.50

d=1.50/0.15

d=10

p=5d

=5x10

p=50

Answer= 50 pennies, 10 dimes

b) the dogs need to shift their focus to human scent.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^