Which equation did Ravi solve?
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O2 + 4y = -3
2 – 4y= -3
O2 + 4y = 3
2 - 4y = 3

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n