Answer:
c
Step-by-step explanation:
show me the problem and make me brainliest
R=-7, you have to put each answer in the equation, therefore; 21=42-3(-7) So you have to do multiplication (PEMDAS, if you arent aware of that acronym then it stands for the order of what to do with an equation, Parentheses get solved first, then Exponents, then multiplication, then division, then addition, then finally subtraction. Solving in that order will solve your answer correctly.) With -3 times -7 which gives you 21. Then you do 42 - 21 which equals 21. So 21 = 21.
The equation for this line is y=1.3x+2
Given:
Investment (P) = $10000
Rate of interest (R) = 3.5%
Time (T) = 7 years
To find:
Amount in the account after 7 years
Solution:
Simple interest formula:
Simple interest = $2450
Amount = Investment + Interest
= 10000 + 2450
= 12450
Therefore $12,450 will be in the account after 7 years.
4,331 times 8 (semiannual for 4 yrs) = 34,648
34,648 + 5.5% = 36,553.64
to find interest:
36,553.64 - 34,648 = 1,905.64
THE INTEREST RATE IS $1,905.64
