Answer:
Jewel is 7 years old
John is 1 year old
Dave is 17 years old
Step-by-step explanation:
From the question we are told that:
Jewel age is 
John age 
Dave's age a Year ago
So that Dave.s age this Year could be
Simplifying Equation for Dave's age we have
Dave is 17 years old
Therefore
Johns age is
John is 1 year old
Answer:
not sure if this is what youre looking for but here
y=-3/2x+9
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
Given
(2m + 5n)² = (2m + 5n)(2m + 5n)
Each term in the second factor is multiplied by each term in the first factor, that is
2m(2m + 5n) + 5n(2m + 5n) ← distribute both parenthesis
= 4m² + 10mn + 10mn + 25n² ← collect like terms
= 4m² + 20mn + 25n² ← perfect square trinomial
Answer:60
Step-by-step explanation:I seen the answer on bill bye the math guy
Answer: round it up to 5
Step-by-step explanation:
2/3 time 7 = 14/3
14/3= 4.6
if the number after the decimal is above 5 you may round up
