Answer:
<h2>90 Hope this helps! Please consider marking brainliest.</h2>
Step-by-step explanation:
Use pemdas:
(15+26)=41
(4+15)=19
Rewrite the question: 4+41+19+26= 90
<h2>90</h2>
Her brother sent C. 490 messages.
In order to find this, we need to set it up as a proportion. Once we have done that, we can cross multiply and solve for the unknown variable.
(4/7) = (280/x) -----> Cross multiply.
4 * x = 7 * 280
4x = 1960
x = 490
Answer:
<u>multiply</u> the base and <u>add </u>the exponents
