Algebra Answers

Raj is 45 years old and his mother is 73, how many years ago was Raj’s mother three times his age?

Maria is clueless about 4 of her multiple choice answers. The possible answers are A, B, C, D, E, or F. What is the probability that she will guess all four answers correctly? please help

holly's garden is divided into 5 equal sections. she will fence the garden into 3 areas by grouping some equal sections together. what part of the garden could each fenced area be?

at a recent concert, the 1,000-seat hall was full.Tickets bought in advance cost $30, and tickets at the door cost $40. Total ticket sales were 38,000. Write a system of two equations to represent this information

birthbath has a diameter of 22 incheswhat is the volume of the birdbath if it is 4 inches deep

Mallory sends 50,000 phishing emails., posing as an agent for Bob's Bank. 10% of the e-mails reach customers of Bob's Bank. 0.47% of those customers fall for the phishing email. Mallory collects their banking info and fradulently steals an avg of $1000 from each of them. How much money does Mallory make?

Let U = {1,2,3,4,5,6,7}
A = {1,3,5,7}
B = {1,2,3}
C = {2,3,4,5,6}

What are these sets?
2. A ∩(BUC)
4.(A∩B)U (A∩C)
6. C'∩(AUB')
8.(C'∩ A)U(C'∩B')
10. (A∩B∩C)'
12. (B U C)' ∩ A

Thank you for your help in advance, means a lot, since I struggle so greatly with math. :(

In a shop, Monica buys 3 newspapers and 2 magazines, Jennie buys 2 newspapers and 4 magazines. Monica pays £4.30 and Jennie pays £6.20.

How much does a newspaper cost?

paula rode her bicycle in a 4-hour marathon. She passed the front rider after 12 minutes into the race. If her speed was constant throughout the race, how many meters did she ride before she passed the front rider?