*needed for brianliest fast pl and you* (07.02 lc)
how many solutions does the equation −2a + 2a + 7 = 8 have?
one
two
none
infinitely many

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.

Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 150, 120, 136, 180, 158, 175, 124, 162 minimum maximum median upper quartile lower quartile