LE 4. a)
In the peak season of winter days, a retailer marked the price of an electric heater
as Rs 4000 and 10% discount was given to make 20% profit. But in the summer
days she increased the discount percent to get only 12% profit from the same type
of heater. How much did she/he increase the discount percent?

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Which problem could be  solved  by evaluating the expression  7×(−3)7×-3?

Acamper leaves camp on a kayak and travels 50 miles east on a river, then he ties his kayak to the bank and travels 20 miles north on a bicycle. this trip can be plotted on the coordinate plane, where the camp is the point (0, 0). the distant of the camper to the camp can be found using the distance formula. which other formula can he use? a) 502 - 202 b) 502 + 202 c) 502 - 202 d) 502 + 202

1. the following set of data represents the number of waiting times in minutes from a random sample of 30 customers waiting for service at a department store. 4 5 7 10 11 11 12 12 13 15 15 17 17 17 17 17 18 20 20 21 22 22 23 24 25 27 27 31 31 32 a. determine the number of classes and class interval.