Which expression represents the calculation “add 3 and 5, then multiply by 7”? a) (7 × 3) + 5 b) 3 + (5 × 7) c) 7 + (3 × 5) d) 7 x (3 + 5)

D. 7x(3+5)

Step-by-step explanation:

1) PEMDAS

You must solve the equation inside the parentheses first.

(3+5)=8

2) Then Solve the outside

(8)x7=56

Hope This helps!

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

hiking down a winding trail.

step-by-step explanation: