exam Maths Puzzle Numerical Ability

Sam must have an average of 70 or more in his summer course to
obtain a grade of C. His first three test grades were 75, 63, and 68. Write an inequality
representing the score that Sam must get on the last test to get a C grade.

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Hello I just wanted to make sure this answer was correct.

Write a true sentence using either < or >.

-1.2 ___ 0.333
My answer was -1.2 > 0.333 a business invests $10.000 in a savings account for two years. at the beginning of the second year, an additional $35.000 is invested. at the end of the second year, the account ba