Lois wants to average 83% on her 5 tests to assure herself a B. If she scores 72%, 90%, 85% and 88% on her first four tests, what does she need to earn on her last test to meet her goal?

80%

step-by-step explanation:

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation:

the area of ​​the surface of the rectangular prism here is 250 cm2, which is the surface of the shading

step-by-step explanation: