a) substitution (refer to statements 1 and 2)
b) definition of supplementary
c) subtraction property of equality
Answer:
He grew 7.2 inches.
Step-by-step explanation:
68.7-61.5=7.2
Expression:
68.7-61.5=g
or
61.5+g=68.7
Answer:
(1,4)
Step-by-step explanation:
1/3 * 7/9 kg = (1 * 7)/(3 * 9) kg = 7/27 kg
He used 7/27 kg of sugar.
