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Mathematics 7 Online
OpenStudy (anonymous):

please help me i need help i need to get a good grade on this!!! 5. Use the formula P = 2l +2w to find the perimeter of the rectangle. 2.3 4.1 (1 point)6.4cm 8.7cm 10.5cm 12.8cm 6. Solve the equation. m – 4.8 = 12.13 (1 point)7.33 8.67 16.21 16.93 7. You buy some jeans on sale. The jeans originally cost $29.95 and are on sale for $25.12. Write and solve an equation to show the amount of the discount. (1 point)29.95 + 25.12 = x; $55.07 29.95 – x = 25.12; $4.83 25.12 – x = 29.95; $4.83 29.95 + x = 25.12; $4.83 For problems 8 – 9, choose a reasonable estimate. 8

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