The answer is C. 90 degrees.
This is because angle R is one of the four angles of a square.
I hope this helps.
I am pretty sure that it would be 13m + 8. All you have to do is combine the like terms.
Answer:
y= -2x + 7
Step-by-step explanation:
Answer:
4a^2 - 15b + 9b^2
Step by step explanation:
Let t represent Todd's age now.
.. 4(t -3) -(t -3) = 81 . . . . . . 3 years ago, their differnce in ages was 81.
.. 3t -9 = 81
.. t = (81 +9)/3 = 30
Todd is 30 now.
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You can also work this by considering "ratio units." 3 years ago, the ratio of their ages was 4:1, a difference of 3. That difference corresponds to 81 years, so each "ratio unit" represents 81/3 = 27 years. Todd's age then was 1 ratio unit, 27 years. Now, Todd's age is 30.
