Why cant i sigh up for it says "We're sorry" but we are unable to complete your registration at this time"

Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Aline passes through 3,7 and 6,9 what equation represents the line