1. 5 times a number decreased by 12 equals 62. What is the number? Equation:
Solution:

2. One-half of a number is 8. What is the number?
Equation:
Solution:

help me please..tnx​

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)