Step 3: 20PR=1,536 Step 4: PR=76.8km

What is valek’s first error
A. Valek did not correctly divide 1,536 by 20 going from step 3 to step 4
B. Valek did not find the correct product of 32 and 48 going from step 2 to step 3
C. Valek should have written the proportion in step 1 as 32/20=PR/48
D. Velek should have written the cross product in step 2 as 32PR=(20)(48)

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Which graph represents the linear function below? y-4= (4/3)(x-2)

Interpret the following expression (5y^2-7)^3/(2y)^2